Predictors of post-sentence mental health service use in a population cohort of first-time adult offenders in Western Australia

Crim Behav Ment Health. 2015 Dec;25(5):355-74. doi: 10.1002/cbm.1927. Epub 2014 Aug 25.

Abstract

Background: Little is known about whether or how offenders use mental health services after sentence completion.

Aim: This study aimed to determine the likelihood of such service use by adult (18-44 years) first-time offenders up to 5 years after sentence completion and possible predictor variables.

Methods: Pre-sentence and post-sentence mental health service use was obtained from whole-population linked administrative data on 23,661 adult offenders. Cox proportional hazard models were used to determine which socio-demographic, offending and pre-sentence health service variables were associated with such post-sentence service use.

Results: The estimated 5-year probability of any post-sentence mental health service use was 12% for offenders who had not previously used such services, but still only 42% for those who had. For the latter, best predictors of post-sentence use were past psychiatric diagnosis and history of self-harm; history of self-harm also predicted post-sentence use among new mental health services users and so also did past physical illness. Indigenous offenders had a greater likelihood of service use for any mental disorder or for substance use disorders than non-Indigenous offenders, irrespective of pre-sentence use. Among those with pre-sentence service contact, imprisoned offenders were less likely to use mental health services after sentence than those under community penalties; in its absence, socio-economic disadvantage and geographic accessibility were associated with greater likelihood of post-sentence use.

Conclusions: Our findings highlight the discontinuity of mental healthcare for most sentenced offenders, but especially prisoners, and suggest a need for better management strategies for these vulnerable groups with mental disorders.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Criminals / psychology*
  • Criminals / statistics & numerical data
  • Female
  • Humans
  • Male
  • Mental Disorders / epidemiology
  • Mental Disorders / psychology
  • Mental Disorders / therapy*
  • Mental Health Services / statistics & numerical data*
  • Middle Aged
  • Prisoners / psychology*
  • Proportional Hazards Models
  • Psychotic Disorders
  • Residence Characteristics
  • Self-Injurious Behavior / psychology
  • Substance-Related Disorders / epidemiology
  • Substance-Related Disorders / psychology
  • Substance-Related Disorders / therapy*
  • Western Australia / epidemiology
  • Young Adult