How and why people die in the year after leaving prison in England and Wales

What is it about?

People released from prison face dramatically elevated mortality risk, particularly in the first weeks after release, yet comprehensive cause-specific analysis of who dies and why remains limited. This retrospective cohort study examined 1,511 deaths among people under post-release supervision in England and Wales between 2019 and 2021, using standardised ICD-10 cause-of-death classifications drawn from official HM Prison and Probation Service data. The study calculated crude mortality rates, age-standardised mortality ratios and temporal patterns over the 12-month post-release period, and analysed how demographic and criminogenic factors varied across causes of death including drug poisoning, suicide, homicide and natural causes. The all-cause mortality rate was 857 deaths per 100,000 person-years, with women dying at a substantially higher rate (1,260) than men (825). Post-release mortality was shaped by intersecting demographic, criminal justice and social factors, and risk was highest in the period immediately following release.

Featured Image

Why is it important?

The first year after prison release is one of the most dangerous periods in a person's life, yet it remains substantially under-researched in the UK context. This study provides the most comprehensive cause-specific mortality analysis of the post-release period in England and Wales to date, using the largest and most complete dataset available from official government records. The finding that women's post-release mortality rate is more than 50% higher than men's is particularly striking and points to acute, gendered vulnerabilities that are poorly served by current reintegration and health care provision. The study's conclusions, that gender-specific approaches and coordinated action across health, justice and social services are urgently needed during imprisonment and in the critical post-release window, carry direct implications for probation practice, prison healthcare, drug treatment services and suicide prevention policy.

Perspectives