Publication: Fatal and nonfatal opioid overdose risk following release from prison: A retrospective cohort study using linked administrative data

Among individuals who are released from prison, opioid overdose is a leading cause of death with a risk more than ten-fold the general population. Although the epidemiology of opioid-related fatalities has been described, few studies have characterized both fatal and nonfatal opioid-related poisonings. The objective of this study was to estimate risk of fatal and nonfatal opioid overdose among adults released from prison.



  • Justice-involved individuals have a high burden of addiction and overdose risk.
  • Opioid overdose is markedly elevated after prison release.
  • The risk of opioid overdose is particularly high in the first two weeks.
  • In women, elevated overdose risk is mediated through greater mental health burden.


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