A Population-Based Study of the Prevalence and Correlates of Self-Harm in Juvenile Detention

PLoS One. 2016 Jan 13;11(1):e0146918. doi: 10.1371/journal.pone.0146918. eCollection 2016.

Abstract

Background: Suicide is the number one cause of death among incarcerated youth. We examined the demographic and forensic risk factors for self-harm in youth in juvenile detention using a Canadian provincial correctional database.

Method: We analyzed data from de-identified youth aged 12 to 18 at the time of their offense who were in custody in a Manitoba youth correctional facility between January 1, 2005 and December 30, 2010 (N = 5,102). Univariate and multivariate logistic regression analyses determined the association between staff-identified self-harm events in custody and demographic and custodial variables. Time to the event was examined based on the admission date and date of event.

Results: Demographic variables associated with self-harm included female sex, lower educational achievement, older age, and child welfare involvement. Custodial variables associated with self-harm included higher criminal severity profiles, younger age at first incarceration, longer sentence length, disruptive institutional behavior, and a history of attempting escape. Youth identified at entry as being at risk for suicide were more likely to self-harm. Events tended to occur earlier in the custodial admission.

Interpretation: Self-harm events tended to occur within the first 3 months of an admission stay. Youth with more serious offenses and disruptive behaviors were more likely to self-harm. Individuals with problematic custodial profiles were more likely to self-harm. Suicide screening identified youth at risk for self-harm. Strategies to identify and help youth at risk are needed.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Age Factors
  • Child
  • Criminals
  • Databases, Factual
  • Educational Status
  • Female
  • Humans
  • Juvenile Delinquency
  • Male
  • Manitoba
  • Multivariate Analysis
  • Prevalence
  • Prisons*
  • Risk Factors
  • Self-Injurious Behavior / epidemiology*
  • Social Class
  • Suicide*
  • Time Factors

Grants and funding

This project was partially funded by the Reclaiming Hope: Manitoba’s Youth Suicide Prevention Strategy initiative, which is connected to Manitoba Health and Healthy Living. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.