LAUSR

PURPOSE Internationally, rates of suicide and lifetime self-harm are higher in prisoners compared to the general population. This study aims to identify specific characteristics of self-harming behaviour and to establish a profile of prisoners who engage in self-harm. DESIGN/METHODOLOGY/APPROACH Data from the Self-Harm Assessment and Data Analysis Project (SADA) on self-harm episodes in prisons in the Republic of Ireland during 2017-2019 was used. Annual rates per 1,000 were calculated by age and gender. FINDINGS The rate of self-harm between 2017 and 2019 was 31 per 1,000 prisoners for men and six times higher at 184 per 1,000 prisoners for women. The rate of self-harm was twice as high among prisoners on remand than sentenced prisoners (60.5 versus 31.3 per 1,000). The highest rates of self-harm among sentenced prisoners were observed among 18-29-year-old men (45 per 1,000) and women (125 per 1,000). The rate of self-harm was higher among women prisoners in all age groups. Contributory factors associated with self-harm were mainly related to mental health but also linked to a prisoner's environment and relationships. PRACTICAL IMPLICATIONS There is a need to ensure access to timely and suitable mental health services, including both appropriate referral and provision of evidence-based mental health interventions to address the needs of these cohorts. ORIGINALITY/VALUE To the best of the authors' knowledge, this is the first national study to systematically examine incidence and patterns of self-harm among the prison population in Ireland. The recording of severity/intent of each episode is novel when assessing self-harm among the prison population.