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Provision and uptake of routine antenatal services: a qualitative evidence synthesis

Abstract Background Antenatal care (ANC) is a core component of maternity care. However, both quality of care provision and rates of attendance vary widely between and within countries. Qualitative research can assess factors underlying variation, including acceptability, feasibility, and the values and beliefs that frame provision and uptake of ANC programmes.  This synthesis links to the Cochrane Reviews of the effectiveness of different antenatal models of care. It was designed to inform the World Health Organization guidelines for a positive pregnancy experience and to provide insights for the design and implementation of improved antenatal care in the future. Objectives To identify, appraise, and synthesise qualitative studies exploring: · Women’s views and experiences of attending ANC; and factors influencing the uptake of ANC arising from women’s accounts; · Healthcare providers’ views and experiences of providing ANC; and factors influencing the provision of ANC arising from the accounts of healthcare providers. Search methods To find primary studies we searched MEDLINE, Ovid; Embase, Ovid; CINAHL, EbscoHost; PsycINFO, EbscoHost; AMED, EbscoHost; LILACS, VHL; and African Journals Online (AJOL) from January 2000 to February 2019. We handsearched reference lists of included papers and checked the contents pages of 50 relevant journals through Zetoc alerts received during the searching phase. Selection criteria We included studies that used qualitative methodology and that met our quality threshold; that explored the views and experiences of routine ANC among healthy, pregnant and postnatal women or among healthcare providers offering this care, including doctors, midwives, nurses, lay health workers and traditional birth attendants; and that took place in any setting where ANC was provided.  We excluded studies of ANC programmes designed for women with specific complications. We also excluded studies of programmes that focused solely on antenatal education. Data collection and analysis Two authors undertook data extraction, logged study characteristics, and assessed study quality. We used meta‐ethnographic and Framework techniques to code and categorise study data. We developed findings from the data and presented these in a 'Summary of Qualitative Findings' (SoQF) table. We assessed confidence in each finding using GRADE‐CERQual. We used these findings to generate higher‐level explanatory thematic domains. We then developed two lines of argument syntheses, one from service user data, and one from healthcare provider data. In addition, we mapped the findings to relevant Cochrane effectiveness reviews to assess how far review authors had taken account of behavioural and organisational factors in the design and implementation of the interventions they tested. We also translated the findings into logic models to explain full, partial and no uptake of ANC, using the theory of planned behaviour. Main results We include 85 studies in our synthesis. Forty‐six studies explored the views and experiences of healthy pregnant or postnatal women, 17 studies explored the views and experiences of healthcare providers and 22 studies incorporated the views of both women and healthcare providers. The studies took place in 41 countries, including eight high‐income countries, 18 middle‐income countries and 15 low‐income countries, in rural, urban and semi‐urban locations. We developed 52 findings in total and organised these into three thematic domains: socio‐cultural context (11 findings, five moderate‐ or high‐confidence); service design and provision (24 findings, 15 moderate‐ or high‐confidence); and what matters to women and staff (17 findings, 11 moderate‐ or high‐confidence) The third domain was sub‐divided into two conceptual areas; personalised supportive care, and information and safety. We also developed two lines of argument, using high‐ or moderate‐confidence findings: For women, initial or continued use of ANC depends on a perception that doing so will be a positive experience. This is a result of the provision of good‐quality local services that are not dependent on the payment of informal fees and that include continuity of care that is authentically personalised, kind, caring, supportive, culturally sensitive, flexible, and respectful of women’s need for privacy, and that allow staff to take the time needed to provide relevant support, information and clinical safety for the woman and the baby, as and when they need it. Women’s perceptions of the value of ANC depend on their general beliefs about pregnancy as a healthy or a risky state, and on their reaction to being pregnant, as well as on local socio‐cultural norms relating to the advantages or otherwise of antenatal care for healthy pregnancies, and for those with complications. Whether they continue to use ANC or not depends on their experience of ANC design and provision when they access it for the first time. The capacity of healthcare providers to deliver the kind of high‐quality, relationship‐based, locally accessible ANC that is likely to facilitate access by women depends on the provision of sufficient resources and staffing as well as the time to provide flexible personalised, private appointments that are not overloaded with organisational tasks. Such provision also depends on organisational norms and values that overtly value kind, caring staff who make effective, culturally‐appropriate links with local communities, who respect women’s belief that pregnancy is usually a normal life event, but who can recognise and respond to complications when they arise. Healthcare providers also require sufficient training and education to do their job well, as well as an adequate salary, so that they do not need to demand extra informal funds from women and families, to supplement their income, or to fund essential supplies. Authors' conclusions This review has identified key barriers and facilitators to the uptake (or not) of ANC services by pregnant women, and in the provision (or not) of good‐quality ANC by healthcare providers. It complements existing effectiveness reviews of models of ANC provision and adds essential insights into why a particular type of ANC provided in specific local contexts may or may not be acceptable, accessible, or valued by some pregnant women and their families/communities. Those providing and funding services should consider the three thematic domains identified by the review as a basis for service development and improvement. Such developments should include pregnant and postnatal women, community members and other relevant stakeholders.


A B S T R A C T Background
Antenatal care (ANC) is a core component of maternity care. However, both quality of care provision and rates of attendance vary widely between and within countries. Qualitative research can assess factors underlying variation, including acceptability, feasibility, and the values and beliefs that frame provision and uptake of ANC programmes. This synthesis links to the Cochrane Reviews of the e ectiveness of di erent antenatal models of care. It was designed to inform the World Health Organization guidelines for a positive pregnancy experience and to provide insights for the design and implementation of improved antenatal care in the future.

Objectives
To identify, appraise, and synthesise qualitative studies exploring: · Women's views and experiences of attending ANC; and factors influencing the uptake of ANC arising from women's accounts; · Healthcare providers' views and experiences of providing ANC; and factors influencing the provision of ANC arising from the accounts of healthcare providers.

Search methods
To find primary studies we searched MEDLINE, Ovid; Embase, Ovid; CINAHL, EbscoHost; PsycINFO, EbscoHost; AMED, EbscoHost; LILACS, VHL; and African Journals Online (AJOL) from January 2000 to February 2019. We handsearched reference lists of included papers and checked the contents pages of 50 relevant journals through Zetoc alerts received during the searching phase.

Selection criteria
We included studies that used qualitative methodology and that met our quality threshold; that explored the views and experiences of routine ANC among healthy, pregnant and postnatal women or among healthcare providers o ering this care, including doctors, midwives, nurses, lay health workers and traditional birth attendants; and that took place in any setting where ANC was provided. We excluded studies of ANC programmes designed for women with specific complications. We also excluded studies of programmes that focused solely on antenatal education.

Summary of review finding
Studies contributing to the review finding CERQual assessment of confidence in the evidence

Explanation of CERQual assessment
Influence of traditional beliefs

W1. Influence of traditional beliefs
Women in many LMICs hold a range of diverse medical, spiritual and supernatural beliefs which may limit their engagement with ANC services. In these contexts biomedical approaches to health care were not culturally normative and women sometimes turned to TBAs or traditional healers for remedies to treat a variety of pregnancy-related symptoms or to protect against or dispel the effects of 'evil spirits'. Where healthcare providers developed an understanding of and a respect for these traditional beliefs women were more likely to engage with ANC providers 14 studies a

Moderate confidence
Finding downgraded because of concerns about relevance. Likely to be more relevant in LMICs Women

W2. Influence of others
Engagement with ANC can be influenced by a variety of family members and community representatives who may encourage attendance (husband, mother, community health worker or the local TBA) or discourage access (mothers-in-law) (Pakistan, Nepal, Afghanistan and Bangladesh) 11 studies b Moderate confidence Finding downgraded because of concerns about relevance. Likely to be more relevant in LMICs

P1. Co-operation with influential community members
Where providers were able to co-operate effectively with influential tribal elders and TBAs this was viewed as a facilitator to ANC access. Where there was a lack of understanding and co-operation, especially with TBAs, this was perceived as having a detrimental effect on women's willingness to engage with ANC services 5 studies c Moderate confidence Finding downgraded because of concerns about relevance. Likely to be more relevant in LMICs Providers

P2. Traditional, societal and community norms, practices and beliefs
Providers believe that women do not always engage with ANC because of a variety of traditional views about maternity care, including superstitious beliefs, the shame associated with being pregnant, the perception that pregnancy is a healthy state and their preference to be seen by a TBA or doctor 11 studies d

Moderate confidence
Finding downgraded because of concerns around methodology and coherence

Pregnancy as a healthy state
Women W3. Pregnancy seen as a normal event 16 studies e In a number of countries women and their communities viewed pregnancy as a normal, healthy state of being and saw no reason to attend a health facility when they did not perceive themselves to be ill or unwell contexts, particularly in LMICs Selective use of ANC

W4. Confirmation of pregnancy
Visiting an antenatal clinic to have a pregnancy test was seen as a clean and reliable way of confirming a pregnancy and encouraged attendance at ANC facilities. However, some women viewed the pregnancy test as the only reason to visit an ANC provider and attended only once to confirm their pregnancy 6 studies f Low confidence Finding downgraded because of concerns about relevance and coherence. Likely to be relevant in LICs Women

W5. Only visit clinic to get an ANC card
In several LMICs women only visit the clinic to get an ANC card and do not return for further appointments. The ANC card is valued by women as it is seen as an insurance policy allowing access to the hospital in the event of a pregnancy complication, and is often used by providers as a 'passport' to guarantee admission to a hospital at the time of delivery 5 studies g Low confidence Finding downgraded because of concerns about relevance and coherence. Likely to be relevant in specific African LMICs

W6. Financial dependence on husband
In a number of traditional contexts women have to ask their husbands for money to attend ANC and this can act as a barrier if husbands are particularly poor or if they are unsupportive of ANC 6 studies h Low confidence Finding downgraded because of concerns about relevance and coherence

W7. Shame and embarrassment
In some LMICs there is a sense of shame attached to being pregnant because of its association with sex (Pakistan and Bangladesh). In other settings a sense of shame may be felt by women following criticism from health providers about the size of their families, whilst in South America women felt shame and embarrassment about routine physical examinations 6 studies i Low confidence Finding downgraded because of concerns about relevance and coherence

W8. Gender of health care provider
Women prefer to be seen by a female healthcare provider during ANC visits. This view seems to be based on the assumption that women have a better understanding and mutual affinity with pregnancy and child birth compared to men 7 studies j Low confidence Finding downgraded because of concerns about relevance and coherence Women

W9. Women's freedom of movement
Due to cultural or religious beliefs in some countries, the need for women to be accompanied in public places can limit engagement with ANC services as there are not always people willing or available to go with them 2 studies k Very low confidence

W26. Authentic and kind sta
Women's willingness to engage with ANC was enhanced when healthcare providers were perceived to be authentic and kind. A friendly, respectful and attentive approach was appreciated by women, especially those who were feeling worried or anxious about their pregnancy 18 studies j High confidence Finding likely to be a factor in a range of settings and contexts Providers P20. Sta attitude Providers recognised that their attitude and temperament was important even though they sometimes delivered ANC in a hierarchical and didactic manner. They acknowledged that they could be disrespectful to women or become frustrated with women who turned up late or did not heed their advice, and that these behaviours were unlikely to encourage women to engage with ANC. They also associated the qualities of being kind, caring, respectful and calm with the provision of quality ANC 17 studies k High confidence

B A C K G R O U N D
There has been widespread and continuing concern about rates of maternal and neonatal deaths and serious morbidity across the world (UN 2018). Antenatal care (ANC) o ers the promise of screening a women and her foetus for actual and potential problems as the pregnancy progresses, and for treating any complications that may arise. Antenatal care is therefore a core component of maternity care provision in most contexts around the world. Quantitative reviews provide information on the e icacy of standard and alternative versions of antenatal care interventions and programmes for women who use them, and for their babies ( . This led to a secondary analysis of the results of the original WHO trial, which indicated that in some cases the WHO FANC programme might be associated with higher levels of perinatal mortality. This was particularly evident at 32 to 36 weeks gestation (Vogel 2013). In addition, anecdotal accounts and local audits suggested that the care package was not always delivered with fidelity to the original, tested protocol. Under these conditions, while women may attend for the requisite number of visits, the content or quality of care, or both, may not be appropriate for their needs. Barriers and drivers for good-quality care provision in general from a sta perspective have indicated a range of factors in intrapartum and postnatal care, including how sta themselves are treated (Munabi-Babigumira 2017). In 2016, a new WHO ANC guideline was published, recommending eight visits, and taking into account the views and experiences of providers of ANC (WHO 2016). The qualitative analysis undertaken for the 2016 WHO guidelines, and updated to 2019, is the basis for this review.
Although there has been a rise in the percentage of women who attend antenatal care programmes early in pregnancy, and who go on to attend at least three more sessions, these rates are still very low in some countries (Benova 2018; UN 2014). Until recently, it has been assumed that lack of attendance is largely driven by the 'three delays' model (Thaddeus 1994). When services are only provided in central locations, and transportation is infrequent, expensive or non-existent, this is a clear barrier to attendance for some women, especially in cultures where they do not have the autonomy to decide to attend, or to pay for transportation, or both. However, there is increasing evidence that even when services are more accessible and a ordable, women do not always use them, especially if they are members of marginalised population groups, such as those living in areas of deprivation, women from ethnic minority groups, refugees, substance misusers, and those from travelling communities (Downe 2009;Finlayson 2013). This observation holds true in both high-and low-income settings. These studies also note that the biomedical assumptions on which formal ANC is based might not fulfil the needs of all pregnant women, especially in cultures where a more psychosocial approach is culturally normative. The growing recognition of the degree to which women are subject to mistreatment while seeking care in formal maternity care systems also provides an insight into why women may not attend ANC, or why they may attend once and then not again (Bohren 2015;Bowser 2010). This raises questions about why ANC programme vary in quality, and what the drivers or blocks may be for provision of better care in future by sta and healthcare providers.
Qualitative research is the ideal vehicle for answering questions of acceptability, and for exploring the kinds of values and beliefs that might frame provision and uptake of future antenatal care programmes. Data acquired from qualitative studies can inform the content, delivery, and provision of antenatal care, so that it is more e ective, acceptable, accessible, and of higher quality for all users, including those who are members of the most marginalised groups. Findings can inform individual studies and reviews of e ectiveness, by suggesting outcomes that are relevant to women and providers, as well as by generating hypotheses that can be tested out, for example, in future subgroup analyses. In addition, these methods can inform guidelines by answering questions around the acceptability and feasibility of implementing di erent aspects of antenatal care, in policy and practice.
This review was designed to complement the existing Cochrane Reviews of the e icacy of di erent antenatal models of care (Catling 2015;Dowswell 2015), to inform the antenatal care recommendations in the WHO guideline for a positive pregnancy experience (WHO 2016), and to provide insights for the design and implementation of improved antenatal care in the future. It was originally planned as two reviews: one related to service user uptake of ANC, and the other related to service provider provision of good-quality ANC. However, many studies included both groups, and important insights about complex adaptive interactions between women's and healthcare providers' views and experiences could have been lost if the two groups were treated separately (e.g. in situations where the views of women and healthcare providers were integrated in the analysis within a study). We therefore decided to combine the two reviews, and we report the findings of both reviews together.

Description of the topic
Antenatal care has been defined as "the routine care that all healthy women can expect to receive during their pregnancy" (NICE 2008). Health promotion activities are also included. Globally, there is wide variation in the number and content of routine antenatal care sessions provided, including a greater or lesser degree of technical monitoring and testing (Dowswell 2015). Generally, the central purpose of ANC is prophylactic, through the monitoring and support of whole populations of pregnant women and of their babies, to maximise the health and well-being of the majority, and to identify, treat and refer the minority who develop actual or potential complications as the pregnancy progresses.

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How the synthesis might inform or supplement what is already known in this area
This review is focused on access to and uptake of antenatal care. Pawson 1998 has theorised that "programmes are theory incarnate" in social and health care. The mismatch between the theoretical assumptions of routine antenatal care by those who design and deliver it, and those of the cultural context in which it is set, is beginning to be understood as an important barrier to the uptake of antenatal care. Much of what has been termed 'standard' antenatal care is based on an assumption that pregnancy is a fundamentally risky state clinically, and so women need to be regularly assessed for actual or incipient risks. It also assumes that pregnancy is a socially positive condition, that women recognise their pregnancies relatively early, that they have the desire to announce their pregnant state, that they see antenatal care as valuable, and that they have the social, economic and political power to access care when it is provided. In contrast, in many countries pregnancy is seen as a largely healthy physical state, but socially risky. For example, announcing a pregnancy can result in the risk of being subject to the evil eye if jealous neighbours find out (Finlayson 2013). Reluctance to attend clinics among some women may therefore be because they feel there is no need to do so if all is well; or because attending an antenatal clinic reveals the pregnancy, and risks spiritual damage; or because of the extra physical, financial, and social risks of long journeys through di icult terrain. For marginalised women (e.g. those living in areas of deprivation, women from minority ethnic groups, refugees, asylum seekers, substance misusers, women from travelling communities, etc.), reluctance to attend central clinics for antenatal care includes fear of exposure of being pregnant, and consequent social disgrace (for instance, in the case of teenage mothers) (Downe 2009). These insights add to a barriers model in maternity care systems research that has included resource issues (lack of transport options to facilities, lack of funding for transport, need for 'under-the-counter' payments) and other wider cultural blocks, including the need for women in some societies to ask the permission of elders to travel (Thaddeus 1994). The growing concern over the impact of disrespectful and even abusive attitudes and behaviours by healthcare sta towards pregnant women and their families also suggests a further barrier to accessing care (Bohren 2015; Bohren 2014; Bowser 2010).
Alongside the narratives of pregnant and postnatal women, qualitative data studies are revealing the attitudes, beliefs, and behaviours of maternity service providers. These suggest that in some settings healthcare providers are also exposed to disrespect and abuse (Bowser 2010). This may be vertical or horizontal bullying (Khalil 2009), disrespect, and even the threat of physical or sexual assault as they travel to and from work (Baig 2018). This has been noted in countries in all income brackets.
More prosaically, barriers to the provision of any antenatal care, let alone care of good quality, include lack of essential resources, equipment and drugs (Biza 2015; Ezeonwu 2014). This limits the capacity of healthcare providers to ensure that facilities are attractive and clean, and to provide an adequate response to both routine needs and to emergencies. Beyond this, provision of care in rural locations is limited by understa ing when healthcare providers who might be interested in working in these locations are put o from doing so by a lack of good-quality housing or schooling for their children (Lehmann 2008).
In high-income countries, a lack of healthcare providers and limited resources are also cited as factors that influence the provision of quality antenatal care (Royal College of Midwives 2015). Even when there are su icient resources, there may be an emphasis on the problems caused by the increasingly technical content of care, and especially on the extent to which this hinders positive interpersonal interaction between healthcare providers and pregnant women and their companions (Nyman 2013). These issues can have a negative influence on sta morale and a subsequent impact on the quality of care provided (Smith 2008).
Quantitative reviews of existing programmes provide information on the e icacy of standard biomedical ANC interventions and programmes (Catling 2015; Dowswell 2015). However, they do not explain what women think or feel about them, or if healthcare providers find it easy to o er good-quality care within these programmes. To date, studies examining the factors that could drive or block ANC uptake or good-quality provision of services, or both, have not been subject to systematic scrutiny. While it may be assumed that facilitators will simply be the obverse of the barriers, this is not necessarily the case. Many existing ANC programmes that are in theory subject to some of the factors seen as barriers in other settings (such as distance to travel, long waiting times, the need for under-the-counter payments) have high attendance figures, and some new models appear to be attractive to both women and healthcare providers in some settings or social groups where uptake is not traditionally high. These include explicitly partnership-focused models, such as participative women's groups (Seward 2017), and group-based Centering Pregnancy (Carlson 2006;Carter 2016;Magriples 2015). It is not clear what underlying mechanisms have catalysed the attractiveness (and in some studies the e ectiveness) of either of these existing programmes, or if they also have downsides. For example, there is a suggestion in some reported data that individual women randomised to group-type antenatal care dislike the consequent lack of privacy, and a study of male partners attending HIV testing with women at their first ANC visit led to a lack of uptake of ANC, presumably due to fear of disclosure of HIV status (Becker 2010). Looking for both promoting as well as inhibiting factors is equally important, but this should not be based on prior assumptions about what is likely to work. The component of this review that seeks to identify uptake of ANC factors is therefore specifically focused on studies that report on the views of pregnant and postnatal women themselves, and not on what other family or community decision-makers or healthcare providers believe about women's views. Similarly, the provider component only includes the views of service providers, and not the opinion of others about these views.
The phenomena of interest for this review are therefore the factors influencing the uptake of routine antenatal care from the perspective of pregnant and postnatal women, and those influencing the provision of good-quality care by healthcare providers.

How the intervention might work Theoretical model
In line with Booth 2015, we assessed a range of theoretical models that could provide a framework for the synthesis of our findings.
There is little theoretical research that is directly focused on the mechanisms that underpin healthcare uptake or the quality of health service provision, although there is a wide spectrum of research on components like knowledge of, understanding of, and beliefs about benefits, and about design features, such as the availability, accessibility, appropriateness, and quality components of the AAAQ model (Potts 2008). The underpinning theory for our review is the theory of planned behaviour (Azjen 1991). We chose this by consensus among the review team, as it is widely used in healthcare behavioural research, and it appeared a priori to have a good potential explanatory power for the phenomena in which we were interested. Logic models based on this theory should include input factors relating to attitudes, subjective norms, and behavioural control. Attitudes toward the behaviour in question (in this case, attendance at antenatal clinics) can be expected to predict that behaviour. Subjective norms may be injunctive, i.e. based on what is deemed acceptable behaviour by a particular social group, or descriptive, i.e. the behaviour actually exhibited by the social group. Perceived behavioural control refers to the ability of a person to perform a given behaviour.
These input factors are hypothesised to lead to the output of intended behaviour. In the right context, intended behaviours then result in actual behaviours. The theory further states that the input factors are themselves preceded by three psychosocial domains, relating to behavioral, normative, and control beliefs. We hypothesised that the action of attending local antenatal care services is mediated by women's intentions to attend, which are in themselves moderated by their prior attitudes to and beliefs about the value of antenatal care provided locally, by local social norms around such attendance, and by the degree to which they have control over enacting those beliefs and norms, for example, through having the autonomy and finances to travel to where antenatal care is provided. This process in turn is mediated by similar factors operating as mechanisms of e ect for sta , creating a complex dynamic system in which both sta and service users are agents. The a priori logic model for the review is given in Figure 1.

Why is it important to do this review?
Given the low levels of uptake of ANC in many countries and among some population groups, (e.g. women living in areas of deprivation, women from minority ethnic groups, refugees, asylum seekers, etc.) it is important to determine how ANC can be rendered more acceptable and accessible if it is to fulfil its promise of benefiting women and babies in the future. The World Health Organization has recognised the potential problems with the FANC model, and in some settings the continuing lack of access to ANC as it is currently designed. At the same time, the use of some technologies and techniques, notably ultrasound, is rapidly increasing, with little evidence of added benefit, and some suggestion of possible iatrogenic damage. For example, termination for a female foetus is more likely in some settings when the gender of the baby is identified early (Nie 2011). In other settings, some women are overwhelmed with information, and there is no time for proper discussion or authentically-informed decision making (Carolan 2007). While ANC has common-sense value, there is still no strong evidence of impact from RCTs on key maternal and infant outcomes related to uptake of ANC as it is currently delivered around the world. This may be because of the wide variation in content, and the degree to which care is delivered in a way that is acceptable and appropriate for and accessible to the women for whom it is intended. Qualitative review data can provide information on acceptability and accessibility alongside the findings of the current Cochrane Reviews in this area. It can also inform the design of future reviews, to ensure that they capture the elements of ANC that are important to pregnant women.
Healthcare providers play a key role in the implementation and delivery of ANC and are likely to o er valuable insights into their ability to deliver a high-quality service that is acceptable and accessible to women. The issues that hamper such provision are not just evident at the level of personal beliefs and preferences of providers, but also in the systemic barriers that some face, including resource shortage and workplace bullying. These issues The beneficiaries of this review could therefore be both healthcare providers o ering ANC and the women (and their o spring) using it, if policy-makers, funders of the maternity services and healthcare workers use the findings to design, fund, and provide ANC that is better aligned with women's needs and expectations, and with provider concerns and values. The review complements existing qualitative and quantitative reviews in this area, as described in

O B J E C T I V E S
To identify, appraise, and synthesise qualitative studies exploring: · Women's views and experiences of attending antenatal care; and factors influencing the uptake of antenatal care arising from women's accounts; · Healthcare providers' views and experiences of providing antenatal care; and factors influencing the provision of antenatal care arising from the accounts of healthcare providers.

M E T H O D S Criteria for considering studies for this review Types of studies
This is a systematic review of qualitative primary studies. According to Merriam 2009, "qualitative researchers are interested in understanding the meaning people have constructed, that is, how people make sense of their world and the experiences they have in the world". To achieve this, the review encompassed studies using qualitative designs, such as ethnography and phenomenology. Case studies, grounded theory and mixed methods were all eligible designs, and data collection methods could have been interviews, focus groups, open-ended survey questions, diaries, and other narrative data collection methods. We did not include studies that collected data using qualitative methods but without performing a qualitative analysis (for example, where qualitative data are only reported using descriptive statistics). We included mixed-methods studies where it was possible to extract findings derived from qualitative research. We included studies regardless of whether they were carried out alongside studies of e ectiveness of antenatal care. We excluded conference abstracts, as they tend to provide inadequate qualitative data and are di icult to formally appraise because of limited information on the methods used to collect, extract and analyse data. We included published PhD theses where no associated and relevant publications were available. We did not include studies scoring lower than C on our chosen quality appraisal tool (Downe 2007;Walsh 2006), because a score of D indicated that they had significant flaws that influenced the trustworthiness of their data (see 'Appraisal of study quality' for more details).

Types of participants
In terms of pregnant women, we included studies that reported views about and experiences of routine antenatal care. Pregnant women were eligible, and those who had been pregnant at some time since 1998 (allowing for these accounts to be published by 2000 or subsequently). This time-frame accounted for changes in antenatal care delivery since the publication of the previous WHO recommendations on antenatal care in 2001 (Villar 2001), which influenced the provision of antenatal care around the world.
We only included studies of healthy women, to ensure compatibility between this review and the content of the WHO antenatal care recommendations that it was primarily designed to inform. Factors influencing uptake of services that are only provided for women/ foetuses with particular health or social conditions (such as HIV, malaria, or in-utero interventions for malformation) are likely to di er from those influencing the behaviours of most pregnant women, who see themselves as healthy. We did not include papers if they only reported what healthcare providers, partners, or families said about the views and experiences of pregnant women.
In terms of healthcare providers, we included studies that reported the views and experiences of sta based in primary, secondary, and tertiary care settings, who were employed by public, private or charity funders to provide routine antenatal care services. Clinical sta fulfilled the WHO 2004 definition of a skilled birth attendant. The accounts of auxiliary and lay health workers were also eligible, if they were paid directly or indirectly (e.g. by paying expenses or through incentive schemes) to provide antenatal care. Healthcare providers who were commenting on their experiences and views of delivering or providing specialist antenatal services for women/ babies with specific conditions (such as HIV, malaria, or in-utero interventions for malformation) were not included, for the same reasons given above for the women. In addition, we did not include papers which only reported on what healthcare providers or managers thought about the views and experiences of women receiving ANC.

Setting and care provider
The review includes any setting where ANC was provided, e.g. outpatient/antenatal clinics, or antenatal wards in hospitals, birth centres, local health centres, community centres, children's centres, or the woman's home or other local venue. This also includes care provided through e-or m-health platforms. We did not impose any restriction on the healthcare provider in the study selection. Care could have been provided by a range of people, including midwives, nurses, healthcare workers, lay healthcare workers (e.g. trained traditional birth assistants or matrones), obstetricians/gynaecologists, general physicians, and/ or peer supporters.

Types of interventions
We included studies about healthcare providers' views on routine antenatal care provision, and about women's views and experiences of using this care or not. We defined routine antenatal care as the contacts, tests, treatments, health promotion activities, information and supportive measures that all women could access during their pregnancy, and that was not designed for women with particular clinical or social conditions or morbidities. This definition was refined from the broader criteria given in the published protocol.
We included studies exploring women's views and experiences of any or all of the following components of antenatal care, or in the Library Trusted evidence. Informed decisions. Better health.
Cochrane Database of Systematic Reviews case of the providers of barriers and facilitators to provision of good-quality care in any of these areas.
• Content of care: consultations, tests, treatments, information, education, advice, support related to maintaining and monitoring a healthy pregnancy, and helping women to prepare for birth and parenting, where these are provided as part of formal antenatal care provision, either publicly or privately funded, for women/foetus without complications. • How care is provided: including the perceived attitudes and behaviours of healthcare providers, and biomedical, psychosocial, relational, and other approaches to care provision.
The review does not include the following.
• Antenatal care programmes/interventions designed for women and babies with specific complications. • Programmes/interventions that were only about antenatal education, for childbirth or for parenting, or both. These programmes do not include clinical care, tests, and treatments, and they are not usually provided routinely to whole populations of women.

Phenomena of interest
The phenomena of interest were the factors that influence the uptake of routine antenatal services from the perspective of pregnant and postnatal women, and the factors influencing the delivery of routine antenatal care, based on the views and experiences of healthcare providers

Search methods for the identification of studies Electronic searches
We searched PDQ-Evidence (pdq-evidence.org) for related reviews in order to identify eligible studies for inclusion, as well as the following electronic databases.
• MEDLINE -Ovid MEDLINE(R) Epub Ahead of Print, In-Process & Other Non-Indexed Citations and Daily 1946 to present • Embase -OvidSP 1974 to present We chose these databases as we anticipated that they would provide the highest yield of results based on preliminary, exploratory searches.
Using guidelines developed by the Cochrane Qualitative and Implementation Methods Group for searching for qualitative evidence (Booth 2011), we developed search strategies for each database.We did not impose any language or geographic limit on the searches, but to capture views and experiences of women and healthcare providers since the introduction of focused antenatal care (FANC) programmes, we limited our strategies to publication year 2000 and onwards.
We searched for the studies of women's views and experiences initially between 4th and 9th September 2014, and then updated these on 11th and 12th February 2019. Searches for the providers studies were conducted initially on 4th and 5th February 2015, updated on 11th and 12th February 2019.
We did not include conference abstracts as they tend to provide inadequate qualitative data and are di icult to formally appraise because of limited information on the methods used to collect, extract and analyse data. We included published PhD theses where no associated and relevant publications were available.
Search strategies for all databases are given in Appendix 1 .

Searching other resources
We handsearched the reference lists and key authors in the reference lists and undertook backchaining for any references not identified in the search that may be relevant.
We checked the contents pages of over 50 relevant journals as they were issued through Zetoc alerts, over the period the review was undertaken.

Selection of studies
We collated records into two databases (one for the views and experiences of women, and one for service providers) and removed duplicates. One review author (KF) assessed each study to determine inclusion against the inclusion criteria, and a second author (SD) independently assessed each paper where the fit with the inclusion criteria was unclear. The final decision was made by consensus between SD and KF. If we had needed it, a third author (OT) was available to adjudicate. Where necessary, we contacted study authors for further information.

Language translation
For papers that were not published in a language that could be understood by the review authors (i.e. other than English, French, Spanish, Portuguese, Turkish), the abstract was subject to initial translation through open-source so ware (Google Translate). For studies that met the inclusion criteria following this process, or if the electronic translation was inadequate to make a decision, we planned to ask members of the multilingual networks associated with the research teams of the review to translate the full text. If this was not possible (for example, for languages outside the scope of the team or any associated sta ) we planned to list the study as 'inclusion not yet confirmed', to ensure transparency in the review process.
Conceptual translation between languages and cultures is recognised to be an issue in both qualitative and quantitative research (Clark 2017; Al-Amer 2015; Stevelink 2013). Regmi 2010 discusses the issues of translation (a direct and literal word-forword process) and transliteration (a process of translating meaning which may not be word-for-word) in undertaking qualitative research in di erent language and cultural groups. They use the term 'elegant free translation', from Birbili 2000 which is an approach that in Birbili's analysis can help the reader to 'know what is going on' even if it is less faithful to the original text. Regmi 2010 sees this as "a process involving transcription of only the key themes or few quotes, putting in the context". They recognise that this risks the loss of some precision and meaning, but that it is a Library Trusted evidence. Informed decisions. Better health.
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Given that the current review did not aim to be philosophically phenomenological, and that the data we were using (published in English or any other language) was at the level of author themes, selected quotes, and author interpretations of their primary data, we took the pragmatic decision to use the 'elegant free translation' approach to the transliteration of our included studies, rather than translating them word-for-word. We applied this approach both at the stage of decisions about inclusion, and for data extraction and analysis.

Sampling of studies
Large numbers of studies can threaten the quality of the analysis in qualitative evidence syntheses. Syntheses of qualitative studies aim for greater variation in concepts as opposed to an exhaustive sample that aims to avoid bias. Once we had identified all studies that were eligible for inclusion, we assessed whether maximum variation sampling might be necessary to limit data redundancy, while ensuring optimal data richness and diversity. Key areas of variation that we planned to consider for the service users included the type of antenatal care provision, and the geographical setting. For the healthcare providers, the cadre of the provider was a potential factor. If sampling was required, we planned to create a sampling frame, and to map all eligible studies onto the frame, before reviewing the number of studies in each frame to reach a decision about how many studies in each cell we would include in the review.

Data extraction
We recorded study characteristics using an Excel file with multiple worksheets designed specifically for each of the two participant groups included in this review. The study characteristics form recorded details of first study author, date of publication, country of study, context (urban/rural), participant group (parity for the women's views, type of caregiver for the provider review), type of antenatal care received (level of facility where available), theoretical/conceptual perspective of the study, research methods, sample size, method of analysis, and key themes, as recorded by the study authors in each case.

Assessing the methodological limitations of included studies Appraisal of study quality
Our inclusion criteria specified that, to be included, a study must have used qualitative methods for both data collection and data analysis. This criterion constituted a basic quality threshold, as we excluded studies that did not meet this standard. In addition, to assess the methodological quality of included studies, two review authors (SD, KF) independently assessed each study for quality, and made the final decision by consensus between SD and KF. We used the criteria from Walsh 2006 which include the study scope and purpose, design, sampling strategy, analysis, interpretation, researcher reflexivity, ethical dimensions, relevance, and transferability. We then applied the A to D grading of Downe 2007, based on Lincoln 1985, as follows.
• A: No, or few flaws. The study credibility, transferability, dependability, and confirmability are high. • B: Some flaws, unlikely to a ect the credibility, transferability, dependability, and confirmability of the study. • C: Some flaws that may a ect the credibility, transferability, dependability, and confirmability of the study. • D: Significant flaws that are very likely to a ect the credibility, transferability, dependability, and confirmability of the study.
We listed but did not include in the central analysis studies that were graded less than C a er this process. As can be seen from the summary criteria given above, grading a study as D in our taxonomy means that we judge it to have 'significant flaws which are very likely to a ect the credibility, transferability, dependability, and/or confirmability of the study'. We acknowledge that some qualitative researchers believe that all qualitative data have potential value in understanding the phenomenon of interest, but we have argued consistently that including poor-quality studies in systematic reviews risks a misunderstanding of the final phenomenon, which has potentially important consequences if the findings are to be used in a practice or policy context (Walsh 2006).

Data management, analysis, and synthesis
A flowchart illustrating the stages of the analytic process is shown in Figure 2.

Figure 2. (Continued)
Following the principles of meta-ethnography (Noblit 1988), we undertook data extraction and analysis simultaneously for each included study in turn. Meta-ethnography uses an approach based on the grounded theory method of constant comparative analysis, where the analysis is built up study by study. The process requires the researcher to be open to the emergence of new themes, and to ensure that unexpected phenomena can be captured and examined, by subjecting the initial assumptions about what is in the data to both confirmation ('reciprocal analysis') and disconfirmation ('refutational analysis') against each study in turn. This ensures that the product of the review is continually refined as each study is included. However, as this was not a primary grounded theory study, but a qualitative evidence synthesis (QES) (Booth 2016), we did not start from a position of no knowledge. We were explicitly looking for factors influencing both uptake of ANC by women and provision of good-quality care by sta . We also had some prior beliefs about behavioural change theories. We therefore used framework analysis (Gale 2013) as a supplement to metaethnography. We used the findings to test the explanatory power of our original theoretically-informed logic model of the theory of planned behaviour (Azjen 1991), given in Figure 1 (the 'framework'), and where necessary to amend it.
Starting with the earliest published paper, we read each included study in detail, and extracted the relevant verbatim text, along with the codes/themes/theories/metaphors used by the study authors, initially marking them as likely barriers, facilitators, or potentially both barriers and facilitators. We mapped the data from each subsequent paper against this coding structure. Where new data from subsequent papers could not be explained by this emerging taxonomy, we added new categories. Over time, conceptual similarities between some codes in the framework became evident, and these were merged. This resulted in the generation of findings that explained the data at a descriptive level and that were presented in a 'Summary of qualitative findings' table (SoQF), along with the relevant CERQual gradings (see below for details of this process) .
We then undertook a higher-level thematic analysis, to generate transferable explanatory thematic domains that could be predictive of uptake of ANC. These were translated into two lines of argument syntheses: one to explain the service user data, and one to explain the healthcare provider data. This allowed for theoretical explanations of what might underpin perceived factors influencing women's intended and actual use of local antenatal care, or providers' capacity to provide good-quality care, in terms of social, behavioural, and control beliefs, and the contextual factors that interact with these factors to prevent or enable an intention for care uptake or quality care provision.
We then tested the explanatory power of the findings in three logic models (full uptake of routine ANC; partial uptake of routine ANC; no uptake of routine ANC), built on our original hypothesis that the theory of planned behaviour would be a good theoretical model for use or non-use of ANC. The logic models incorporated the key elements of the theory of planned behaviour, namely: 'What do people believe in this context (behavioural beliefs)?'; 'What is normal in this context' (normative beliefs)? and 'How much control do I have over what happens here' (control beliefs)?; the attitudes and perceptions predicted by these beliefs; the intended behaviour that could result; and the actual experiences, all linked to a feedback loop (see figures 4 to 6).
All authors contributed to the final findings, domain structure, lines of argument, and development of the logical models. We made final decisions by consensus, throughout the extraction and analysis process.

Assessing confidence in the review findings
We used Confidence in the Evidence from Reviews of Qualitative research (CERQual) to assess the confidence that may be placed in review findings (Lewin 2015). This approach has been developed by the GRADE-CERQual Project Group 2004. It uses the following four concepts to assess confidence.
• Methodological limitations of included studies: the extent to which there are problems in the design or conduct of the primary studies that contributed evidence to a review finding. • Relevance of the included studies to the review question: the extent to which the body of evidence from the primary studies supporting a review finding is applicable to the context (perspective or population, phenomenon of interest, setting) specified in the review question. • Coherence of the review finding: the extent to which the review finding is well grounded in data from the contributing primary studies and provides a convincing explanation for the patterns found in these data. • Adequacy of the data contributing to a review finding: an overall determination of the degree of richness and quantity of data supporting a review finding.
The above assessments resulted in an overall judgement of confidence in each individual finding as either high, moderate, low, or very low. We list each finding alongside the accompanying CERQual rating in a table that was ordered by the three thematic groups.

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We proposed this sub-analysis due to di erences in uptake, health beliefs, and health system accessibility and quality between these two types of settings.
• Type of respondent: pregnant women; postnatal women; those who have and who have not used antenatal care; type of healthcare provider.
We planned this sub-analysis because expectation and experience may result in di erent accounts. Women who have not attended antenatal care may have a di erent experience of influencing factors than those who have used antenatal care. Healthcare providers from some cadres, such as medical practitioners working in central facilities in high-income countries, may have very di erent views and experiences of phenomena that might influence care quality (such as, for example, stock-outs) than midwives operating in very rural low-resource contexts.
We also considered that, depending on what emerged from the data, we might have considered other sub-analyses, including the type of antenatal care that the views and experiences relate to (for example, FANC; classic schemes with more than four routine visits; partnership-based models), and care setting/location of antenatal care provision.
In the event, our data did not suggest that formal sub-analyses along any specific lines would enhance the explanatory power of our findings. Instead, where findings might have particular resonance for particular groups/contexts, based on the data, we have noted this in the narrative account of our findings. Findings in which we had high or moderate confidence based on GRADE-Cerqual appraisal are particularly likely to have high explanatory power across all groups.

'Summary of qualitative findings' table(s) and evidence profile(s)
We present summaries of the findings and our assessments of confidence in these findings in a series of 'Summary of qualitative findings' tables. We present detailed descriptions of our confidence assessment in evidence profiles.

Linking the findings to relevant Cochrane Intervention Reviews and WHO guidelines
We identified existing quantitative Cochrane Reviews of interventions containing at least one reference to antenatal care provision in the title (Table 1). We examined identified reviews to see if the authors paid attention to possible underlying theories or mechanisms of e ect that might influence the e ectiveness of the interventions they were examining. Where authors identified any relevant theories or mechanisms, we mapped them to the findings identified in this review (Table 2).
We also used the findings as the primary data for informing panel judgements on the acceptability and value of proposed components and interventions for the 2016 WHO ANC guidelines (WHO 2016).

Review author reflexivity
In keeping with quality standards for rigour in qualitative research, the review authors considered their own views and opinions on antenatal care as possible influences on the decisions made in the design and conduct of the study, and in turn on how the emerging results of the study influenced those views and opinions. All review authors believed at the outset that contact with formal and informal caregivers throughout pregnancy was valuable, but that formal antenatal care provision is generally over-focused on clinical procedures and the assessment of risk/ill health, with too little focus on psychosocial aspects of pregnancy. We therefore used refutational analytic techniques ('disconfirming analyses') to minimise the risk that these presuppositions would skew the analysis and the interpretation of the findings.

Results of the search
In total, our searches generated 21,136 hits, including 13,022 from the original searches and 8114 from the updated searches conducted in February 2019. A er screening by title and abstract, we retrieved 522 full-text articles and a er further review excluded 376 because they failed to meet our inclusion criteria. Of the remaining 146 we ruled out a further six because they failed to meet our quality appraisal checks (Lohmann 2018 Because of the large number of studies we decided to include all 65 from the original searches and a sample from the updated searches. Our sampling strategy for the studies located in the updated searches was based on the following rationale: • Include all of the eligible healthcare provider studies, as there were only 10 in the original searches; • Include all of the eligible studies conducted in a European (non-UK) or Middle Eastern setting, as these areas were underrepresented in the original searches; • Include a random sample from the remaining studies to reflect an overall sample size of about 25% of the studies eligible in the updated searches.
Based on these criteria, we included seven additional healthcare provider-only studies, five European studies, one study from Iran, a further four studies representing women's views of ANC and three mixed-population studies (detailing the accounts of women and healthcare providers). We added these additional 20 studies to the

Description of the studies
The papers reporting on women's experiences included antenatal and postnatal women of all parities from 37 countries, living in rural, urban and semi-urban settings, and with varying levels of uptake of ANC, including no uptake. The date range for these studies was 2000 to 2018, and most of the studies were qualitygraded as having 'few' or 'some' flaws.
The papers reporting on providers' experiences included midwives, nurses, doctors, traditional birth attendants (TBAs), and health service managers from 26 countries, working in rural, urban and semi-urban settings. The date range for these studies was 2004 to 2018, and most of the studies were quality-graded as having 'few' or 'some' flaws.
The characteristics and quality assessments of the 85 included studies are shown in Table 3 The studies took place in 41 countries across five continents, and were conducted in eight high-income countries, 18 middleincome countries and 15 low-income countries. Six studies were translated (five Portuguese and one Spanish) but we were unable to translate one Japanese study (Aikawa 2004). Methods used included grounded theory, phenomenology, narrative analysis of survey data, Q methodology and simple interview or focus group studies. Overall, we include the views of more than 1950 women and more than 780 healthcare providers; some studies did not specify the exact number of participants.

Methodological limitations of the studies
Of the 85 included studies, we rated 66 in the 'A' or 'B' range a er quality appraisal, meaning they had few or some flaws that we considered to be relatively minor and unlikely to a ect the reliability of the findings. We graded 19 studies as C or C+, meaning that they had some flaws that might a ect the reliability of the findings. Of these studies, the methodological limitations were primarily associated with poor or inadequate reporting of data extraction techniques or the approaches used to analyse data. One study (Teate 2011), graded as C+, adopted a survey design and analysed participants' free-text responses using simple thematic analysis. Whilst the qualitative findings were relevant to the review, the overall level of depth, detail and richness was relatively poor. We graded two studies as 'C', one (Leal 2018) because the recruitment procedures, data extraction and analysis techniques were unclear, and the other (Khoso 2016) because it purported to use a phenomenological design but lacked the methodological details associated with this approach. Details of the methodological limitations of all of the studies are shown in Table 3.

Findings of the review
Our primary analysis generated 31 findings relating to women's experiences and views (17 moderate to high confidence), and 21 relating to maternity care providers (14 moderate to high confidence). Three thematic domains encompassed all of the findings across both groups. These were: Socio-cultural context; Design and provision; and What matters to women and sta . The third domain was sub-divided into two conceptual areas; personalised supportive care, and information and safety. Summary of findings for the main comparison, Summary of findings 2, Summary of findings 3, and Summary of findings 4 list all the findings in detail, with their CERQual ratings.
Eleven findings were present for both service users and providers (Table 4). They indicate that both service users and providers were conscious that ANC was provided in a social context, in which the local social norms could operate either to enhance or resist uptake. Resource issues are also noted, as well as the need for wellorganised services that o er safety, appropriate information, and positive interpersonal relationships, notably through continuity of care/carer.
A summary of the findings, organised according to the three domains, is discussed below.

Domain one: Socio-cultural context
The domain of socio-cultural context was influenced by a number of sub-domains arising from the findings, including the 'Influence of traditional beliefs', the 'Influence of local beliefs and traditional maternity practices', the notion of 'Pregnancy as a healthy state', the 'Selective use of antenatal care' and 'Gender issues'.

Influence of traditional beliefs
For many women in low-and middle-income countries (LMICs), and particularly for those living in rural areas, there were a variety of medical, spiritual and supernatural beliefs that they saw as preferable alternatives to engagement with formal ANC services. In these contexts biomedical approaches to health care were not culturally normative. Women used community resources, including TBAs and shamen, to treat pregnancy-related conditions and allay concerns about pregnancy outcomes. In some contexts women were precluded from attending antenatal facilities because of supernatural fears relating to pregnancy disclosure. Sometimes these fears were based on religious beliefs, but in most cases the influence of sinister forces, described as evil spirits or 'the evil eye', restricted or delayed ANC engagement, "It is a traditional belief; there are some people that when you tell them and they have evil eyes and mind they can destroy it [the foetus] so unless the pregnancy shows then you tell. If not when it is two or three months you cannot tell" (Dako-Gyeke 2013, Ghana). In other contexts, faith in the knowledge of traditional or spiritual healers limited ANC engagement, "When some women conceive they always have pain. This kind of pain could provoke a miscarriage. They must find the person who knows how to treat this. A curandeiro [traditional healer] or pastor could treat this, but it depends on the woman. There are some cramps that are from your body, and there are illnesses provoked by mal espirito [evil spirit]. Only a prophet or curandeiro can say which is which. In the hospital they don't know how to di erentiate. But neither the hospital nor the curandeiro can cure without God's help" (Chapman 2003, Mozambique). Where women felt their traditional beliefs were ignored or disrespected by healthcare providers their inclination to visit formal antenatal services was reduced (Family Care International 2003, Kenya), but in other instances where healthcare providers made cultural understanding of traditional beliefs an engagement priority, women appreciated the e orts and were more likely to engage, "There are doctors who know the plants here, from our area and they make us see that our plants do serve us so we don't have to take only the pure medicine [Western medicine]" (Mayca 2009, Peru).
In many LMICs a woman's decision to engage with antenatal services was influenced by a variety of di erent people, including family members, community representatives and community health workers. The influence might be positive or negative and could depend on financial considerations, traditional beliefs or familial hierarchies, or both. In some cultures deference to an older female family member (usually the mother, or more o en the mother-in-law) restricted ANC attendance because of a lack of knowledge of ANC or a belief in perpetuating and protecting traditional practices, "My mother-in-law said that pregnant women didn't go for antenatal check-ups in the old days. She told me that she had all her children without any antenatal check-ups and all are fine. She questioned why di erent foods and antenatal check-ups are necessary for pregnant women. That's why I didn't go" (Simkhada 2010, Nepal).

Influence of local beliefs and traditional maternity practices
In rural communities of LMICs where providers were able to cooperate e ectively with influential community members or TBAs, use of ANC services was perceived to be better than where such co-operation was not present. This is starkly illustrated in a study from rural Ethiopia where 'good performing clinics' (with high ANC coverage rates) were compared with contextually similar 'poor performing clinics' (with low ANC coverage rates) (Bradley 2012, Ethiopia). In the 'good performing clinics' the importance of community engagement was identified by the providers as being one of the keys to their success, "There are priests and there are also sheiks. These people are community leaders; therefore we go to them and we tell them that such and such person is not willing to listen to us and we ask them to help us get through to them. A er that, they would go to the community with us and they would tell people that what we had taught them was true"; (Bradley 2012, Ethiopia). In the 'poor performing clinics' these kinds of connections were limited or non-existent.
In some rural African communities where tension sometimes existed between the traditional practices adopted by TBAs and the modern approaches used by community midwives, an emphasis on co-operation rather than confrontation was seen as a way of encouraging women to attend ANC services, "Government should put more e ort into TBA's because the community has trust in them. They are living with them, some of them are friends and relatives so we need to be nearer to them" (Franngard 2006, Uganda). In a variety of LMICs the reliance on traditional maternity practices was viewed as a barrier to ANC engagement by local providers. Health professionals acknowledged that women sometimes preferred to be seen by a TBA because of their understanding of community-derived customs and rituals relating to pregnancy. This mutual understanding generated a sense of trust in traditional practices, especially when biomedical approaches to ANC conflicted with cultural beliefs, "For some of the pregnant women when you talk to them like that and tell them about a complication, if there is any TBA around they rather go to that place, rather than the health facility they have been referred to" (Dako-Gyeke 2013, Ghana).

Pregnancy as a healthy state
Across a wide variety of settings and contexts, including urban and rural locations, women perceived pregnancy to be a healthy state and saw no reason to attend an antenatal clinic unless they felt unwell, "We go to the doctor only if the child is unwell or if the mother has excessive bleeding". (Khoso 2016, Pakistan). Some women viewed pregnancy as a positive experience and held no particular fears or concerns about potential danger signs or complications. This view is clearly reflected in the following statement from a woman in rural West Java, (Indonesia), "I think pregnancy is a normal process so you do not need to think bad thoughts about it" (Agus 2012, Indonesia). Support for this belief was also evident in urban locations where arguably public health messages about the value of antenatal care were more likely to be received and operationalised, as this quote from a woman in Dakka, Bangladesh implies, "As no one expects to be sick during pregnancy, visiting the centre for a check-up is not necessary. What is the point for going for a check-up in a healthy condition" (Chowdhury 2003, Bangladesh). Even in high-income settings, some women postponed or delayed engagement with ANC services because of a perception of feeling well or because of previous experiences with healthy pregnancies, "I think if there were any previous problems with them [previous pregnancies] I would have probably found out but I just felt healthy, I felt OK you know, I just felt normal basically and I suddenly saw my belly getting a bit bigger and my clothes weren't fitting as much". (Haddrill 2014, UK).

Selective use of antenatal care
In certain settings women made selective use of ANC services, and in some instances this was simply based on their desire to confirm a pregnancy. Women were aware that a test at the clinic would prove their pregnancy status and, provided the clinic was reasonably accessible, would take advantage of this service. However, this did not necessarily mean that women visited a clinic at the first sign of pregnancy or even within the first three months, "I started going to the clinic when I was 5 months pregnant; I was not sure that I was pregnant and therefore decided to go and confirm it" (Mrisho 2009, Tanzania). Selective use of ANC was also evident in contexts where women saw a value in obtaining a paper record of their ANC visit(s) in the form of an 'ANC Card'. This finding was peculiar to an African context where the card was viewed as an insurance policy or a passport allowing access to a hospital or health facility when the time came to give birth, "If you come to the clinic for an antenatal care card, you are booking yourself a bed in the clinic. . . . How could you deliver in the clinic without a card?" (Myer 2003, South Africa). In these contexts, however, the value was placed on the card rather than on antenatal care per se and some women just went to receive the card without any understanding of the wider benefits of antenatal care, "I am just afraid of being denied services when I need them, so one must just go [to ANC] to get the [clinic] card. If you do not have a card, they will not accept you when there is a problem.... Otherwise, we could just rest at home" (Mrisho 2009, Tanzania).

Gender issues
Our findings also highlighted several issues relating to gender which generally restricted women's engagement with ANC. The first of these, relating to women's financial dependence on their husband, was demonstrated in a small number of settings where patriarchal systems were dominant. In these contexts women had to ask for money to visit ANC facilities and, even if their husbands were supportive of antenatal care, the issue o en came down to whether there was enough money to go. In some settings these power structures limited ANC engagement but in others women found ways of subverting the hierarchy, especially if they valued antenatal services. "Let me tell you, things are very hard now, my husband does not have money and even when he has, he pretends he does not and will hardly give you anything. It is only when I am going to the hospital that he gives me money and o en times I will tell him an amount more than I will pay in the hospital and use the rest for other things" (Umeora 2008, Nigeria). Studies conducted in Pakistan and Bangladesh also revealed that cultural limits placed on women's freedom of movement sometimes restricted their ability to visit ANC facilities. Even in situations where women were convinced of the benefits of antenatal care their inability to travel independently sometimes prevented them from doing so, "I wanted to go for check-up in the hospital but I could not convince anybody in the house to accompany me. Everybody asked me to stay home" (Chowdhury 2003, Bangladesh).
Also relating to gender, women sometimes felt a sense of shame with being pregnant. In studies conducted in Pakistan and Bangladesh. This was because of an association with sex, whilst in other settings the shame was associated with criticism from health providers or other women about the size of their families or their perceived promiscuity "You know the mothers, while sitting down and waiting for the clinic they will start to make comments, "That woman used to roam around and show o now she is here at the clinic" (Andrew 2014, Papua New Guinea). For other women, particularly in studies from South America, the sense of shame or embarrassment was associated with physical examinations, "Mothers do not want nurses to see the vagina, it is very di icult for them, and for that reason I think many mothers do not attend health clinics, it is because of the shame" (Mayca 2009, Peru). This latter issue was of particular concern when the health professional doing routine examinations was male. Some women found this particularly embarrassing "Being palpated by a man, oh, that was worse! That young man who palpated me was actually inspecting my private parts! In fact he frankly told me before, that I must remove most clothes and leave my abdomen exposed. I felt very embarrassed to undress in front of a male stranger" (Maputle 2013, South Africa). For others the preference to be seen by a female health professional was related to a sense of a inity or gender kinship, "I didn't trust him. The health worker who checked me was a man…that's why I only went once…I only trust the female workers. I am scared of going. Because I'm older, I want to go [to ANC] this time, but I will have to do without it" (Ayala 2013, Peru).

Domain two: Service philosophy, design and provision
The second domain a ecting use of ANC services incorporates a number of organisational factors as well as the philosophical approaches underpinning service provision. These include the local infrastructure, the direct and indirect cost of services, the actual clinic environment, the organisation of services, resource issues and working conditions and an over-emphasis on risk.

Local infrastructure
The proximity of a clinic acted as both a barrier and a facilitator to ANC access, depending on where it was located. For some women, the convenience of having a clinic close by was viewed very positively, "It's actually quite convenient 'cause I can walk there [from work] on the nice days. ... It's close to my husband's work as well" (Sword 2012, Canada); while for others, particularly those in more rural locations or for those with relatively modest incomes, the inconvenience of getting to a clinic was perceived negatively, "If the obstetric care was located here in the neighbourhood, it would have been better. And the person who does not have a car, how do they get to the specialist unit?" (Cabral 2013, Brazil). Proximity of ANC services was also noted by midwives in a rural area of Nigeria where the creation of a 'grassroots' health centre serving the local community appeared to have a positive e ect on maternal and infant morbidity (Chimezie 2013, Nigeria).
In some LMICs, where women faced the prospect of making relatively long journeys (sometimes on foot) to reach an ANC clinic, the local infrastructure could have a negative impact, "I never visited the health center to check my pregnancy because it is so far and the road condition is too bad" (Matsuoka 2010, Cambodia). These areas were o en devoid of useful and a ordable public transport systems, making travel to ANC clinics even more di icult, "There were cars but they were all full. I waited for a while but it was getting late so I started to worry how I would get back a erwards, so I just decided not to go to clinic" (Andrew 2014, Papua New Guinea). Transport di iculties were also recognised by providers, particularly in low-income settings where the hazardous terrain in some rural areas restricted ANC access and presented serious safety concerns for women in distress, "Because of muddy and di iculty topography, the pregnant women in remote areas will not be able to be picked up by the ambulance car from their home. Thus, we have to carry them… This is one of the problems that we have to deal with until the road is constructed" (Bradley 2012, Ethiopia). Providers working in rural areas also bemoaned the lack of available transport options to take them to and from work and the e ect this had on the service they were able to provide, "There are no transports for nurses; the authorities should make transportation available for us. We need transport so that we can come early and give e ective focused antenatal service, then.... I think the big people should think seriously about it because it will bring more productivity" (Ba our-Awuah 2015, Ghana).

Cost of services
Although publicly-funded ANC services are provided free of charge in almost all countries around the world, the indirect costs of getting to and from clinics, the additional charges associated with the purchase of medicines, the loss of vital income to families who rely on women's contributions and the corruptive practices of some healthcare sta all limited women's engagement with ANC. Our findings showed that even when women were convinced of the benefits of ANC and lived in an area where there were no infrastructure issues, if they did not have the money to pay for transport they could not go, "The problem is I did not have any money to pay the transport. I want to have my pregnancy checked by the doctor or the midwife every month, but their places are so far away. I needed transport to get there. Instead, I went and sought traditional birth attendants" (Titaley 2010, Indonesia). In relatively impoverished settings the costs of getting to and from a clinic were sometimes overtaken by more immediate concerns relating to women taking time o from family duties or vital income-generating activities, "When I had a third pregnancy, it was harvest season. So I wanted to help my husband, even during the pregnancy" (Matsuoka 2010, Cambodia). Even in fairly a luent countries the additional costs of purchasing essential medicines or tests hampered ANC attendance in contexts where women were living in relative poverty, "The doctors got angry with me because they wanted me to have an ultrasound but I did not have money" (Coverston 2004, Argentina). Although these issues were occasionally compounded by corrupt healthcare employees selling medicines to women that were supposed to be supplied free of charge (Rahmani 2013, Afghanistan), a number of healthcare providers in a variety of settings also recognised the indirect costs of ANC attendance as a potential barrier to access, "The pregnant women living in rural areas have financial and time constraints for examination [since they need to work]. I have to explain to them that they might experience complications a ecting themselves and their unborn child during their pregnancy" (Graner 2013, Vietnam).

Clinic environment
In situations where women made the decision to visit an ANC facility and had the time and resources to do so, the environment they encountered at the clinic could have a significant impact on their willingness to return. In a number of settings, including high-income countries (HICs), the amount of time women were kept waiting was hugely disproportionate to the amount of time they actually spent with a health professional, and generated feelings of frustration and resentment, "I mean I have waited so long and I was thinking, oh, why do they even give you an appointment time because I am never in there on my appointment time. I normally have to wait for an hour and it is so frustrating and then you are only in there for what, five minutes?". (Worley 2004, New Zealand). The issue of time was just as important to health professionals as it was to women, and midwives in a variety of contexts expressed their frustration with the lack of time available at each appointment, "When they [mothers] are many you don't attend to them. You simply examine her, you listen to complaints, you don't treat, there is no time" (Franngard 2006, Uganda). Health professionals recognised the importance of the antenatal appointment as an opportunity to establish meaningful relationships with women beyond the tick box requirements of a formal antenatal consultation, "Women want time. They want to be able to talk about what they are doing, and for women who aren't educated, don't know the right questions, or how to say things, it o en takes a lot of time just sitting with them to open to the point where they will talk about a bad discharge smell or… the baby hasn't been moving for the last two days … It really is having enough time to get to know the woman and for them to feel like they are welcomed and they are listened to and they are not hurried out." (Heaman 2015, Canada), Both midwives and women also agreed that a lack of privacy in busy clinics sometimes discouraged women from further attendance,

Organisation of services
Both women and providers felt that in certain settings, particularly LMICs, ANC services were poorly organised and hampered regular attendance. A study in Uganda, for example, revealed that whilst antenatal appointments were o ered on a daily basis, antenatal education sessions were only o ered twice a week on an ad hoc basis, so women had no idea when to attend or what was being taught. "We ask them to return a er one month; in between, we do not follow it up. So when they come, the topic they find is the one they shall listen [to], but we do not repeat." (Conrad 2012, Uganda). Of more concern to both providers and women in a variety of settings was the flexibility of appointment times and the availability of health professionals. In some contexts appointment systems were organised with a provider focus so that heavy caseloads could be managed more e ectively, but these systems were not necessarily convenient for women, "They come and we give them dates, except Thursdays . . . normally Thursday is not a working day in this community, so to them Thursday is a clinic visiting day . . . Even when given a date, they wait for Thursday . . . they never observe the dates" (Mathole 2005, Zimababwe). In contrast, where appointment systems were deemed to be more flexible or where health professionals were perceived to be more available women appreciated the ease of access and the extra reassurance this provided, "I think being able to call and get somebody to call you back in about 10 or 15 minutes has been really great. I think that -I don't know that I wouldn't have had as healthy a pregnancybut I think I would've felt a little bit more stressed out about certain things" (Sword 2012, Canada).

Resource issues and working conditions
Although some women in LMICs bemoaned the lack of equipment, medicines and supplies at local health facilities and viewed this as a disincentive to ANC engagement (Conrad 2012; Matsuoka 2010; Shabila 2014) issues relating to resources and working conditions were largely highlighted by health professionals. Poor pay, lack of career progression opportunities and a lack of recognition were cited by health professionals in a number of LMICs, "We are paid less by the state government and also there is no promotion, no bonus or reward, and the salary is not enough for us to feed our families" (Mugo 2018, South Sudan). Sta shortages were a particular issue and, although identified in one or two high-income settings (Alderson 2004, UK; Novick 2013, USA), the most severe shortages were noted in LMICs, especially Africa. "Understa ing is a problem, just now I cannot go for a home visit . . . I cannot go because there will be no-one. I can't go o . . . I am always here. I work throughout the day and night" (Mathole 2005, Zimbabwe). For some health professionals the lack of sta , coupled with a heavy workload, generated feelings of frustration and anger and the desperate acknowledgement that women were inevitably receiving sub-standard care, "You are doing research on maternal health access…you have been here, you have seen our sta strength and you have seen the kind of resources and equipment we are working with. How can we ensure that all women have access to good care? Just look at me, I am the only midwife, and look at all the women sitting outside, how can one person take proper care of all of them. Sometimes, I believe the women are right for not coming to us" (Ganle 2014, Ghana). Health professionals also complained of inadequate training, particularly in their ability to deal with pregnancy complications, whilst more experienced sta felt the opportunities for much-needed refresher courses or 'updates' were curtailed by limited resources, "We hardly go to any training or workshops nor do we receive any tuition reimbursement or bursary for advanced education." (Chimezie 2013, Nigeria). In addition, poor working conditions and shortages of relatively basic equipment and supplies contributed to inadequate care in a number of LMICs, "We have no essential equipments such as a weighing scale or labour kits for childbirth. We have stopped providing DPT-Hepatitis B vaccine because we have no syringes" (Mrisho 2009, Tanzania). In situations where sta felt supported by their managers they felt better able to deal with the various challenges they encountered, "We get huge assistance from the woreda [local government].They supervise every week… by mobile phone and by presenting themselves at the health center. There are annual, quarterly, weekly action plans. They follow up on the implementation of these activities. There are experts assigned to provide support for us" (Bradley 2012, Ethiopia). However, where these relationships were strained or viewed as unsupportive, health professionals became frustrated and disengaged, "The first thing that people from the woreda [local government] and the health center ask us when they come here is 'how many babies did you deliver?' But there might be bleedings, and we don't even have gloves here. We can't even get any gloves when we go and ask for them… We are always asking and we are saying that we are missing these things… They do not even supply gloves. We always raise the problem, and the woreda always skip it" (Bradley 2012, Ethiopia).

(Over-) emphasis on risk
In several countries (the UK, Zimababwe, Uganda and Tanzania) health professionals felt that the use of screening procedures to determine risk status hindered their ability to deliver quality antenatal care. Midwives felt that the amount of time required to complete all of the necessary screening procedures during a relatively short antenatal appointment le little time to discuss any woman-initiated concerns or o er genuine care, "It is the dilemma we are grappling with, and personally I think screening has been introduced without the resource commitment being taken on board" (Alderson 2004, UK).

Domain three: What matters to women and sta : personalised supportive care
The third domain encompasses key aspects of antenatal care that are important to women and sta . The first of these is personalised, supportive care incorporating social and community support, individualised care and sta attitudes.

Social and community support
In a number of di erent settings and contexts women highlighted the importance of a social component to antenatal care. Several studies conducted in rural areas of LMICs, where ANC access is traditionally low, discussed community involvement in the design and provision of ANC services. In the Huanaco region of Peru, women from the indigenous community were not only engaged in informing the content of ANC (including recognition of traditional practices), but were also involved in the design of the health facility itself to ensure it was constructed along traditional lines, "... We were consulted about the construction of the maternity house in Yápac and we took the ideas and a er we all engaged in building it, the people participated bringing materials: boards, stones, sand, bricks, and all that is needed" (Mayca 2009, Peru). In India the use of community-based 'women's groups' generated interest and input into maternity care and a genuine force for change, "As for my knowledge, the people who are attending the meetings and discussing many new things about the health of mothers and newborns are explaining what they have learnt to five more people, as a result of which each and every person should know. These meetings are really helpful as we are only involved in trying to solve the health problems of the community through the help of community members. We believe that together we can bring about change". (Rath 2010, India). The value of engaging with other pregnant women in an informal way was highlighted by women in a wide variety of contexts and circumstances and is exemplified by this quote from a pregnant woman in Nigeria, "Doctor, you know that we engage in 'hard' work everyday, it is only when we come here or visit the local midwives (TBAs) that we have time to relax and enjoy, even you meet other pregnant women like you and talk about many things that will help you and the baby'. Don't you know we enjoy this dance each time we come here, in fact I look forward to it. If you ask me to come only four times that means I will come only four times. No! I enjoy dancing and other women will agree with me. It helps us relax and make the baby in your 'stomach' (uterus) active and healthy" (Umeora 2008, Nigeria) This kind of social engagement was also evident in a number of HICs, although largely mediated through group antenatal care. The group format provided a context for social interaction and was largely welcomed by women and healthcare professionals as a place where women could share pregnancy-related information and receive valuable emotional and psychological support, "I felt good, because like, it was good to talk to somebody that was in your predicament, which was pregnant. It was good to talk to somebody like that, so they could understand where you coming from, and how you feeling too" (Novick 2013, USA).

Individualised care
Women in HICs sometimes felt that antenatal appointments were impersonal interactions devoid of any genuine 'care'. The short duration of appointments coupled with the emphasis on clinical measurements, largely focused on the foetus, le women feeling processed rather than cared for, "Yeah cos everything is about the baby...it's like AAARRGGHHH! No one says 'how are your hormones today?' or 'can you poke your head out of the hole today?' Yeah, I'm doing well....or they say it as in 'how's your tummy going? It's not about YOU...and how's your BRAIN getting around it!" (Armstrong 2005, Australia). In contrast, women recognised when health professionals provided genuine care and appreciated the individualised nature of inquiries, "She just explained the whole process and she o ered me the options of the CMU [community midwifery unit] or the Consultant led unit and explained them in detail and again we just talked through any of my anxieties" (Docherty 2011, UK). Both women and providers in a variety of HICs recognised that the 'continuity of carer' model was probably the best way of providing the type of individualised care that women wanted. This view was expressed in positive terms, "If you were worried about anything or wanted to talk about anything, it's easier if you see the same person every time rather than a strange face" (Earle 2000, UK), or in negative terms, "I worked in Antenatal Clinic for three months. Back then, it just struck me that it was such a waste of time. These poor women would come and sit around for hours, waiting and then they would be seen for five minutes and the person seeing them wouldn't even know their name." (Wilmore 2015, Australia).

Attitude of sta
In terms of women's engagement with ANC the attitude of sta played a key role. In situations where healthcare sta were perceived to be kind, attentive and empathic women were much more likely to return, "When I visit her I feel relaxed, I feel less pain because I like her. She asks me about my problems, I tell her and she answers to all my questions. She talks about everything and she explains everything" (Kabakian-Khasholian 2000, Lebanon). However, in settings where sta were perceived to be cold and impersonal or just plain rude, women felt upset and sometimes unwilling to return, "[The health workers] work well, but last time I went for ANC they upset me. She told me 'old woman why are you giving birth to more children? You should use contraception […] I told you and you did not listen to me." (Ayala 2013, Peru). In a number of LMICs the impersonal nature of care sometimes descended into disrespectful behaviour and occasionally verbal or even physical abuse "I am also afraid of the nurses. They bully and mistreat us" (Pretorius 2004, South Africa). From a provider perspective there was an acknowledgement that they sometimes resorted to disrespectful behaviour, although they usually sought to justify their actions. A fieldwork observation from a study in Uganda highlights this issue, "During fieldwork, incidents where caregivers were unfriendly in their interaction with patients were also observed. One such incident was observed in a queue outside a congested health facility in which the caregivers shouted at the waiting patients and even physically pushed away those whom they said were not following the rules. The caregivers said this was the only way to handle what they described as 'stupid women" (Ayiasi 2013, Uganda). In some contexts this disrespectful attitude amongst providers was so pervasive that suspicions were aroused when health professionals acted in a caring manner, "I am sad to say that patients are afraid of us, they do not dare to ask questions. If I take good care of my patient, my colleagues ask if I am related to the patient or have received money from her" (Rahmani 2013, Afghanistan).

Sub-domain 3b: Information and safety
The third domain also encompasses issues that are important to women and sta , and focuses on antenatal care as a source of information and as a context for clinical safety.

Antenatal care as a source of information
In many countries and contexts women visited ANC providers to acquire knowledge and information about their pregnancy and birth. The quest for information was highlighted by women of all parities but was particularly pertinent for women who were pregnant for the first time, "I think the information that I received was very valuable... very helpful detailed information, especially preparing for the labour part... I didn't know what to expect, so it was really helpful to be able to get information about those things," (McNeil 2012, Canada). In situations where information was provided in a useful, appropriate and engaging manner, it generated a sense of empowerment and made women feel more involved in their antenatal care, "I believe it's the way they involve you, and the way they tell you everything that's going on. So there's no secrets, there's no mysteries, there's no secret codes or anything like that that you don't understand. ... It makes you feel like you are totally in the loop and you know just as much as the doctors know. ... And it makes you more confident, and like more prepared, and just feels good to know everything that's going on" (Sword 2012, Canada). By contrast, in situations where this approach was not adopted, i.e. where tests were not explained properly or information was infused with medical jargon, it acted as a barrier and sometimes curtailed further engagement, "The woman that we spoke to, she was going on about you know about protein in your urine or whatever and all this stu and I just didn't have a clue what she was talking about. It is all very...... I know they must do it all the time" (Docherty 2011, UK). In some contexts it was not so much the manner in which informational needs were met (or unmet), but was more about the medium used to deliver information. Women did not appreciate being given copious amounts of leaflets or booklets during antenatal visits without the opportunity to discuss the contents with a health professional, "Today they gave me a whole bag of pamphlets and flyers and didn't explain or go over them with me" (Kraschnewski 2014, USA). This was an issue in a couple of high-income settings and o en resulted in women turning to the Internet in search of clarity or to satisfy any informational deficits. In low-and middle-income settings women were more likely to turn to relatives, friends or TBAs to address any unmet informational needs. Sometimes this approach brought clarity or reassurance, but at other times clinical knowledge was supplanted by traditional understandings that perpetuated informational myths, "I was told by my mother that I should stop (having sexual intercourse) when I was seven months pregnant, that when you sleep with a man in late pregnancy you will deliver a baby which is dirty with a bad skin" (Ayiasi 2013, Uganda). For some women living in rural areas of LMICs, where access to formal antenatal care was supplemented by informal visits to TBAs or community midwives, the conflation of di erent sources of information could be confusing. However, there was evidence that in these situations women, especially younger women, were more likely to value the 'scientific' information derived from healthcare professionals than the 'experiential' knowledge from traditional informants, "If the information from di erent sources is not the same, I need to discuss it. Three to four women can consult together in the market. If we cannot know who is right, we will follow [the advice from] doctors… The information from parents and grandparents is just experience" (Graner 2013, Vietnam).

Antenatal care as a context for clinical safety
In addition to viewing antenatal care as a source of information, women also acknowledged that antenatal appointments provided a context for clinical safety. For women in a variety of di erent resource settings the availability of medicines, medical tests and screening procedures (e.g. HIV tests and ultrasound) o ered safety and reassurance during pregnancy and encouraged ANC attendance, "I think for me the most important aspects would be knowing that I'm okay. women in a couple of LMICs to ensure they attended antenatal care early and regularly in subsequent pregnancies, as noted by a health professional in Kenya, "She will attend antenatal care immediately she senses that she is pregnant again. She will start preparing for antenatal care without wasting time because she does not want to lose that child as she has been doing again and again." (Family Care International 2003, Kenya). Providers in several di erent contexts also agreed that women were attracted by specific components of antenatal care, especially those o ering safety and reassurance, e.g. the availability of iron tablets to prevent anaemia (Graner 2010, Vietnam).

The line of argument and hypothesised facilitative mechanisms of e ect
The line of argument emerging from the analysis of the data relating to pregnant women was as follows.
For women, initial or continued use of antenatal care depends on a perception that doing so will be a positive experience. This is a result of the provision of good-quality local services that are not dependent on the payment of informal fees and that include continuity of care that is authentically personalised, kind, caring, supportive, culturally sensitive, flexible, and respectful of women's need for privacy, and that allow sta to take the time needed to provide relevant support, information and clinical safety for the woman and the baby, as and when they need it. Women's perceptions of the value of ANC depend on their general beliefs about pregnancy as a healthy or a risky state, and on their reaction to being pregnant, as well as on local socio-cultural norms relating to the advantages or otherwise of antenatal care for healthy pregnancies, and for those with complications. Whether they continue to use ANC or not depends on their experience of ANC design and provision when they access it for the first time.
For healthcare providers, the line of argument was similar, but with a di erent emphasis.
The capacity of healthcare providers to deliver the kind of high-quality, relationship-based, locally accessible ANC that is likely to facilitate access by women depends on the provision of su icient resources and sta ing, as well as the time to provide flexible, personalised, private appointments that are not overloaded with organisational tasks. Such provision also depends on organisational norms and values that overtly value kind, caring sta who make e ective, culturally-appropriate links with local communities, who respect women's belief that pregnancy is usually a normal life event, but who can recognise and respond to complications when they arise. Healthcare providers also require su icient training and education to do their job well, as well as an adequate salary, so that they do not need to demand extra informal funds from women and families to supplement their income, or to fund essential supplies.
The three facilitative mechanisms of e ect arising from these lines of argument were: • Treating pregnancy as a fundamentally healthy state while monitoring for complications; • Ensuring authentically accessible and a ordable access to skilled care provision and required resources throughout the antenatal episode; • Creating the conditions to enable positive sta attitudes and behaviours.

Testing the findings with 'theory of planned behaviour' logic models
To test the utility of the findings for future use in practice, we developed theoretical logic models based on these findings, to explain no uptake, partial uptake, and full uptake of ANC services by women, in the context of our a priori behavioural theory (the theory of planned behaviour). Each input box was populated by statements based directly on the findings. The three models derived from this process are given in Figure 4, Figure 5 and Figure 6. Text in regular font relates to pregnant women, and text in bold font relates to providers of ANC. Superscript text refers to the finding numbering in Summary of findings for the main comparison; Summary of findings 2; Summary of findings 3 and Summary of findings 4. For this theoretical exercise, we only used findings of moderate or high confidence. If the logic models and findings are to be used to understand mechanisms of e ect for implementation projects in specific settings, they may need to be re-rated for those specific settings. For example, we rated some findings as low or very low confidence on the grounds of coherence or relevance, because all the data only came from particular settings, or because there was incoherence between di erent types of settings, or both. Both relevance and coherence may be increased for very specific settings. For example, the low-confidence rating for 'Only visit ANC to get an ANC card' is due to lack of relevance and coherence for all settings, since all five included studies were from Africa. For African settings, however, there is high coherence and relevance for this finding.

Using the data for local implementation planning
This modelling exercise illustrates the potential to use the findings of the review as a basis for planning and development with local stakeholders (e.g. policy-makers, professionals, women, communities, funders). Collaborative assessment of the local position in relation to each of the findings given in the 'Summary of findings' tables, mapped against the elements of the theory of planned behaviour, would illustrate mechanisms where there are local blocks and barriers or potential facilitators, and at which level of the system they are operating (community norms, personal norms, norms of providers, or other). Having identified which findings are most relevant locally, and having agreed any other factors that might be operating in their specific setting, stakeholders can work with the model and with the appropriate findings to turn barriers to facilitators, and to reinforce facilitators that already exist. This would enable the health system to direct e ort most e iciently at the factors that are most likely to be influential in catalysing positive change.

Results of linking the review findings to intervention reviews
We examined the six relevant Cochrane Reviews identified in Table  1 to see if the authors paid attention to possible underlying theories or mechanisms of e ect that might influence the e ectiveness of the interventions they were examining. Where authors identified any relevant theories or mechanisms, we mapped these to the findings identified in this review (Table 2). Some authors explicitly noted relevant factors in the 'How this intervention might work' section of their reviews. In some cases, these mapped directly to some of the findings identified in our review; principally those to do with resources, and with continuity of care. However, 29 findings (women or healthcare provider) were not represented in any of the interventions tested in any of the studies, including four assessed as having high confidence ('pregnancy as a healthy state'; 'rude and abusive sta '; 'authentic and kind sta '; and 'sta attitude').

Results of review author reflexivity
We set out the prior positions of the review team in the Methods section of this synthesis. These positions did not change throughout the synthesis. In terms of data extraction, analysis, synthesis, and decisions about recommendations for practice and research, we specifically looked for disconfirming data relating to our strong prior beliefs that an over-emphasis on clinical testing and screening tended to overlook women's needs for more psychosocial and informational support. Despite trying to find such disconfirming data, our final analysis confirmed our prior position.

Summary of main findings
Our primary analysis generated 31 findings relating to women's experiences and views (17 moderate to high confidence), and 21 relating to healthcare providers (13 moderate to high confidence).
The data in the studies included in the updated searches between 2014 and 2019 could all be mapped to the original 31 findings statements, with some additional nuances, and with no new or disconfirming data. This provided a confirmability check for the primary findings.
Three key domains encompassed all of the findings across both groups. These were: 'Socio-cultural context'; 'Service, design and provision'; and 'What matters to women and sta '. The third domain was subdivided into two conceptual areas; personalised supportive care, and information and safety. Logic models were successfully developed, based on the Summary of Qualitative Findings.

Overall completeness and applicability of the evidence
The included studies encompassed a wide range of countries and socio-economic settings, and data from women and from healthcare providers. Our confirmatory search and analysis did not identify any new data that could refute the findings from our primary search and analysis.
Eleven findings were present for both women and healthcare providers. They indicate that both women and providers were conscious that ANC was provided in a social context, in which the local social norms could operate either to enhance or to resist uptake. Resource issues were also noted, as well as the need for well-organised services that o er safety, appropriate information, and positive interpersonal relationships, notably through continuity of care/carer.
In contrast, notions that pregnancy is generally a healthy state, and that attendance at ANC was only useful to confirm pregnancy, or to get an ANC card and therefore access to facilities for intrapartum care, were only present in the women's data. Data relating to personal constraints, including issues relation to gender inequality (financial dependence. shame and embarrassment, freedom of movement) were also unique to women's views and experiences. Findings relating to working conditions, training, and the need for management support were only in the healthcare providers' data.
Although the finding relating to pregnancy as a healthy state was not in the providers' data, a parallel finding about the perceived limits of risk-averse service provision was generated from provider responses.
Some authors of e ectiveness studies in the area of antenatal care design and provision identified mechanisms of e ect, programme theories, or design features for their chosen interventions that could be mapped directly to some of the findings identified in this review. These were principally to do with resources, and with continuity of care. The four high-confidence findings that were not overtly linked to the interventions covered two key domains. These were women's perception of pregnancy as a healthy state, and the attitudes and behaviours of sta . Both seem to be important omissions, given the growing evidence that lack of (re-) attendance for ANC can at least partly be explained by a lack of tailoring of the focus of ANC on what matters to women (Downe 2016a;Finlayson 2013;WHO 2016).
The capacity of the theory of planned behaviour to explain our findings suggests that the results of this review could be relevant for implementation strategies to support the introduction of the WHO ANC guidelines (WHO 2016) into e ective practice. Olivier de Sarden 2017 has recently critiqued 'travelling models' of maternity care, based on 'miracle mechanisms', that, having worked in one (usually high-income) setting, are deemed to be e ective for implementation as whole programmes in completely di erent contexts. De Sardan argues, based on experiences in Africa, that e ective implementation needs to first establish local systems, norms, and values, and then to build up context-specific programmes that are culturally normative for each setting. As our findings have revealed, the need to understand local cultural framing of ANC provision, which may be radically di erent from normative cultural framing of donors or international agencies, has indeed been recognised in existing qualitative studies of the views and experiences of pregnant women and healthcare providers.
In line with these prior analyses, our review has identified factors rated as low confidence, since they may be more applicable in some particular settings than others. These include the need to visit clinics in pregnancy to get an ANC card as a 'passport' to facility birth, for example. In these particular settings, such findings may actually reach high confidence. Issues such as this (going to ANC only to get a card, in an African context) could have been explored in greater detail through sub-analyses of the data, particularly with regard to potential di erences between service provision and uptake in HICs and LMICs. Similarly, our findings might have been further enriched if we had explored similarities and di erences between types of respondents, e.g. between midwives and doctors, or types of service provider, e.g. public and private. Future updates of this review could specify these sub-analyses a priori.
However, our results also provide a critique of the premise that maternal health interventions can ONLY be built from the bottom up. Whilst there will always be a need for local tailoring, the three key domains identified by our review do seem to be universally applicable, both on the basis of the review data and in terms of our confirmatory analysis. We suggest that ANC implementation strategies should always be structured by these three domains, in any context, with the findings arising from the review acting as a framework for assessing what might be relevant locally within each domain, and to what degree each of the findings need to be addressed locally to maximise e ective local implementation.

Confidence in the findings
In the primary analysis, we had high or moderate confidence in more of the findings that contributed to the domain of 'What matters to women and sta ' (personalised supportive care, and information and safety), (11/17 findings), than for 'Service design and provision' (13/28 findings) or for 'Sociocultural context' (4/10 findings). This reflects other qualitative analyses of women's views in other areas of maternity care (Downe 2018;Karlström 2015). For the providers, high or moderate confidence was also evident for findings relating to sta working and employment conditions, which is in line with other studies of healthcare provider views in a range of maternity and general healthcare areas and settings (Elbarazi 2017; Munabi-Babigumira 2017).

Agreements and disagreements with other studies or reviews
We are aware of four published meta-synthesis studies related to antenatal care provision (Table 5). They all focus on the views and experiences of service users. Two included only women who did not use ANC at all, or who did not use it regularly (Downe 2009;Finlayson 2013). One only included women using ANC in the USA (Phillippi 2009). One focused on what matters to women in pregnancy in general, and not on their actual experiences of ANC (Downe 2016a). The findings of our review include providers; women who used ANC fully as well as those who did not; and accounts of participants from around the world. All of the findings in the previous four meta-synthesis reviews could be mapped to the three key domains generated by this review, with some additional context-specific details, such as the need for provision of childcare in ANC settings in a review based on participants from the USA (Phillippi 2009).
In terms of the six most relevant published e ectiveness reviews, as noted above and in Table 1 and Table 2, there is a variable match between the hypothesised or apparent mechanisms of e ect for the proposed interventions, and the findings of this review. Intervention programmes with multiple components were more likely to include more elements that could be mapped to the findings of this review than those with single components. Those planning future antenatal intervention studies or implementation programmes should consider the findings of this review as part of their analysis of the mechanisms of e ect that they intend to operationalise through their planned interventions.

Limitations of the review
Despite extensive e orts to identify studies from all relevant settings, our review has fewer studies from mainland Europe (n = 4) or the Middle East (n = 4), and none from either Russia or China. Most studies were published in English, which may suggest that studies from cultural contexts where English is not the norm were missed; however, our searches were not restricted by language and we searched continent-specific databases such as LILACS and AJOL. We excluded studies relating to sub-populations of women, e.g. minority ethnic groups, refugees and asylum seekers, HIVinfected women and women with drug or alcohol dependency, as we were interested in routine antenatal care services rather than 'additional' services that might be o ered to women from these sub-groups. Although women from some of these groups are likely to be represented in the general populations included in the studies in the review, their specific needs are not addressed, and arguably it is women from these sub-groups that are most likely to benefit from antenatal care. Similarly, we excluded from the review women with identified pregnancy complications (e.g. pre-eclampsia, gestational diabetes), as additional support may be required for these women. In some cases where confidence in the findings was low overall, this was because the data only came from particular contexts, such as LMIC settings. Analysis by these settings alone would have resulted in higher confidence ratings for the findings in the context of those specific settings. This may be important if the findings are to be applied to specific settings in the future.

A U T H O R S ' C O N C L U S I O N S
This review has identified key barriers and facilitators in the uptake (or not) of ANC services by pregnant women, and in the provision (or not) of good-quality ANC by healthcare providers. It complements existing e ectiveness reviews of models of ANC provision (Brown 2015;Catling 2015;Dowswell 2015;Mbuagbaw 2015;Sandall 2016;Till 2015) and adds essential insights into why the particular type of ANC provided in specific local contexts may or may not be acceptable, accessible, or valued by some pregnant women and their families/communities.

Implications for practice
Stakeholders intending to implement ANC guidelines could benefit from local modelling of the three key domains identified in this review, and their sub-elements, against the theory of planned behaviour, in relation to their local communities and ANC provision. This would enable stakeholders to identify local normative, belief, or attitudinal barriers to good-quality provision, and to uptake. Successful implementation will require tailoring of the ANC service to ensure clinical and interpersonal quality, address barriers, and enhance locally-enabling factors as well as culturally appropriate promotion of good-quality locally-tailored services. This groundwork could also reveal facilitative factors that already exist in the relevant communities and health systems that could be maintained and reinforced into the future. The final model will be di erent in each setting, while remaining faithful to the underlying mechanisms of e ect revealed by the findings generated by the review. For maximum e ect, this exercise should include community and service-user stakeholders, as well as service funders, policy-makers, managers, and providers.

Implications for future research
Implementation research should be undertaken to test the findings and conclusions of this review, especially those in which there is high or moderate confidence. Specifically, such research could test the utility of the integration of the findings with logic models as a basis for prospective interventions to improve the quality, acceptability, and uptake of antenatal care provision in particular local settings. Lessons learned should be integrated iteratively into subsequent implementation research design in this area. Future comparative and implementation studies in the area of ANC should explicitly state the hypothesised underlying mechanisms of e ect of the chosen intervention(s), with regard to the factors identified in this review. Outcomes should be selected to establish if these mechanisms are actually operating once the intervention is implemented, and to assess impacts that are in line with issues important to service users or providers, or both, as revealed by this review.

WHO 2002
World Health Organization. Provision of e ective antenatal care -Integrated Management of Pregnancy and Childbirth (IMPAC): Standards for maternal and neonatal care. www.who.int/ reproductivehealth/publications/maternal_perinatal_health/ e ective_antenatal_care.pdf. WHO, (accessed prior to 17 September 2016).

WHO 2016
World Health Organization. WHO recommendations on antenatal care for a positive pregnancy experience. www.who.int/reproductivehealth/publications/ maternal_perinatal_health/anc-positive-pregnancyexperience/en/ 2016 (accessed 16 May 2018). What matters to women: a systematic scoping review to identify the processes and outcomes of ANC provision that are important to healthy pregnant women Table 1. Published qualitative and quantitative reviews on antenatal care provision and uptake (Continued) Author/date Review title Programme theory/Intervention design factors related to findings in current review

Dowswell 2015
Alternative packages of antenatal care for low-risk pregnant women ANC is a series of visits with clinical interventions: the main hypothesised mechanism of effect was the number of visits W31

P21
Catling 2015 Group versus conventional antenatal care for pregnant women Self-care; continuity of co-ordinator of group; time to socialise; flexible content around a standard core; facilitative approach; increased time in antenatal care; education; social and peer support W15, 17, 20, 21, 22, 27 P11,18,19 Mbuagbaw 2015 Health system and community-level interventions for improving antenatal care coverage and health outcomes Sta capacity building; increasing numbers of midwives; reduction/payment of user fees and transport costs; adopting private sector model if superior to alternatives; individual sessions; community education and information to encourage attendance); engaging multiple stakeholders.

P5
Brown 2015 Giving women their own case notes to carry during pregnancy Transfer of information when women move from one facility to another. Easy access to notes (for professionals); reduce the storage and administrative costs; improved information for the woman and improved communication between the woman and the caregiver W27 Sandall 2016 Midwife-led continuity models of care compared with other models of care for women during pregnancy, birth and early parenting Women's health needs are not isolated events: longitudinal relationship between women and providers; perception of being 'known' and cared for by the provider; 'co-ordinated and smooth progression of care from the patient's point of view'; woman-centeredness: improved management (communication across and between women, professionals, and agencies); information (timely availability of relevant information); and relationship (therapeutic relationship over time.  Cochrane Database of Systematic Reviews

CERQual assessment Domain
High/moderate confidence Mixed confidence Low/very low confidence

Sociocultural context
Influence of others --

Service design and provision
Indirect cost of services  The review excluded women who were reporting on their actual experience of ANC. This review includes these accounts Cochrane Database of Systematic Reviews

D E C L A R A T I O N S O F I N T E R E S T
• Soo Downe is an editor with the Cochrane E ective Practice and Organisation of Care group.
• Kenny Finlayson, Özge Tunçalp, and A Metin Gülmezoglu have no interests to report.

External sources
• Bill and Melinda Gates Foundation, USA.

D I F F E R E N C E S B E T W E E N P R O T O C O L A N D R E V I E W
This review is based on two protocols (Downe 2016b; Downe 2017) that have been merged for the final analysis. This allowed for 'compare and contrast' decisions to be made. It also allowed for an analysis of maternity care as a complex adaptive system, in which the views and experiences of service users and providers are both integral, and in which service delivery and service uptake interact dynamically. We combined the search strategies and inclusion criteria into one overarching search process. Data analysis and all other aspects of the reviews were the same in both protocols, and, apart from the sampling and sub-analyses planned in the protocols, we followed these processes for the final review.
In the protocol for this review under the heading 'Types of Interventions' we used a broader definition of antenatal care that included the phrase, "helping women to prepare for birth and parenting". When we conducted the initial searches it became clear that this phrase would pick up studies relating to formal antenatal education sessions. As our review was focused on routine antenatal care rather than specific educational sessions o ered during the antenatal period we removed the phrase from our definition in this review.
In the protocol for this review, we planned to undertake sampling if there were more than 30 eligible studies. In the event, we had more than 30 studies, but we considered that sampling was only necessary for the more recent studies (located in our final updated search), to ensure full diversity in study inclusion, and adequate data richness, We have therefore amended our Methods section in the final version of the review, to reflect this decision.
In our protocol we stated that the logic models we planned to use were based on the reasoned action approach (Fishbein 2010). In fact, the model provided in Figure 1 in the protocol was for the theory of planned behaviour (Azjen 1991), and this is the theory we used for the analysis in this review. We have amended the label for the figure for accuracy.