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Evaluation of the improving access to psychological therapies for offenders programme at HMP Lincoln: a three year prospective cohort study

The mental health needs of prisoners are significant with a high incidence of common mental health problems including anxiety and depression. Extending national initiatives such as the National Health Service Improving Access of Psychological Therapies programme to people in prison offers a valuable opportunity to address these mental health problems and improve continuity of care from prison to the community. This study adopts an observational, prospective cohort design and evaluates an IAPT for offenders service over the first three years of operation within a male Category B prison holding remand/convicted prisoners. The evaluation found large effect sizes for changes in anxiety and depression with clinical recovery being achieved in 55% of depression and 52% of anxiety cases. On average, prisoners were treated in less than five sessions employing a low-intensity cognitive-behavioural approach. The lack of established formal diagnoses and a control group limits the findings.