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Abstract 080: SEX AND GENDER ASPECTS IN HYPERTENSION PREVALENCE OF CANADIAN AND EUROPEAN POPULATIONS


 Introduction:
 Gendered-psycho-socio-cultural factors have been shown to play a significant role in disease manifestation, control and management of hypertension (HTN), and their relationship varies in males and females. We investigated the role of sex and gender in HTN prevalence and country-level differences in Canadian and European populations.
 
 
 Methods:
 Data from the Canadian Community Health Survey (CCHS, 2015-16, N=109,659, Females:56.6%) and the European Health Interview Survey (E-HIS, 2013-2015, N=316,333, females: 51.3%) were analyzed. Primary endpoint was defined as having a diagnosed HTN made by a health professional in the past 12 months. Relationship between gender variables and HTN prevalence and interaction with sex was assessed in a multivariable model. Federated analysis was conducted using the R package and DataShield which allows international data pooling by only exposing aggregated results.
 
 
 Results:
 The prevalence of HTN was greater in Canada compared with Europe (CCHS: 30.1% vs EHIS: 22.4%, P<0.001). Amongst European countries, Southern (SEU) and Central East (CEU) region had greater prevalence of HTN and more significant sex-differences (greater prevalence in females) compared to Northern (NEU) and Western (WEU) regions. In the multivariable model for assessing the role of gender variables in prevalence of HTN, female sex, older age, greater BMI, married or divorced/widowed status, and lower income were associated with higher risk of HTN, while greater household size, higher level of education, and living in European countries compared to Canada were associated with lower risk. There was a significant interaction between socioeconomic status (income, education) and sex in country stratified analysis. Within European countries, this was more evident in CEU, and SEU compared to NEU and WEU, where women with lower socioeconomic status had greater risk of HTN. There were significant country-level differences with being an immigrant and risk of having HTN. While living in NEU and SEU was associated with lower risk of having HTN, living in CEU was associated with a greater risk.
 
 
 Conclusion:
 The findings of the study demonstrate the importance of gender related factors and particularly the differences amongst various countries.
