Rates and causes of death after release from incarceration among 1 471 526 people in eight high-income and middle-income countries: an individual participant data meta-analysis

Data from the Mortality After Release from Incarceration Consortium (MARIC) study recorded 75 427 deaths. The all-cause crude mortality rates (CMR) during the first week following release (1612 [95% CI 1048–2287]) was higher than during all other time periods (incidence rate ratio [IRR] compared with week 2: 1·5 [95% CI 1·2–1·8], I2=26·0%, weeks 3–4: 2·0 [1·5–2·6], I2=53·0%, and weeks 9–12: 2·2 [1·6–3·0], I2=70·5%).

The highest cause-specific mortality rates during the first week were due to alcohol and other drug poisoning (CMR 657 [95% CI 332–1076]), suicide (135 [36–277]), and cardiovascular disease (71 [16–153]). We observed considerable variation in cause-specific CMRs over time since release and across regions. Pooled all-cause CMRs were similar between males (731 [95% CI 630–839]) and females (660 [560–767]) and were higher in older age groups.

The markedly elevated rate of death in the first week post-release underscores an urgent need for investment in evidence-based, coordinated transitional healthcare, including treatment for mental illness and substance use disorders to prevent post-release deaths due to suicide and overdose. Temporal variations in rates and causes of death highlight the need for routine monitoring of post-release mortality.

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