title: Trauma histories among justice-involved youth: findings from the National Child Traumatic Stress Network.
abstract: BACKGROUND
  Up to 90% of justice-involved youth report exposure to some type of traumatic event. On average, 70% of youth meet criteria for a mental health disorder with approximately 30% of youth meeting criteria for post-traumatic stress disorder (PTSD). Justice-involved youth are also at risk for substance use and academic problems, and child welfare involvement. Yet, less is known about the details of their trauma histories, and associations among trauma details, mental health problems, and associated risk factors.
  
  
  OBJECTIVE
  This study describes detailed trauma histories, mental health problems, and associated risk factors (i.e., academic problems, substance/alcohol use, and concurrent child welfare involvement) among adolescents with recent involvement in the juvenile justice system.
  
  
  METHODS
  The National Child Traumatic Stress Network Core Data Set (NCTSN-CDS) is used to address these aims, among which 658 adolescents report recent involvement in the juvenile justice system as indexed by being detained or under community supervision by the juvenile court.
  
  
  RESULTS
  Age of onset of trauma exposure was within the first 5 years of life for 62% of youth and approximately one-third of youth report exposure to multiple or co-occurring trauma types each year into adolescence. Mental health problems are prevalent with 23.6% of youth meeting criteria for PTSD, 66.1% in the clinical range for externalizing problems, and 45.5% in the clinical range for internalizing problems. Early age of onset of trauma exposure was differentially associated with mental health problems and related risk factors among males and females.
  
  
  CONCLUSIONS
  The results indicate that justice-involved youth report high rates of trauma exposure and that this trauma typically begins early in life, is often in multiple contexts, and persists over time. Findings provide support for establishing trauma-informed juvenile justice systems that can respond to the needs of traumatized youth.
authors.affiliation: National Center for Child Traumatic Stress, University of California, Los Angeles, CA, USA.
authors.forename: Carly B
authors.initials: CB
authors.lastname: Dierkhising
authors.forename: Susan J
authors.initials: SJ
authors.lastname: Ko
authors.forename: Briana
authors.initials: B
authors.lastname: Woods-Jaeger
authors.forename: Ernestine C
authors.initials: EC
authors.lastname: Briggs
authors.forename: Robert
authors.initials: R
authors.lastname: Lee
authors.forename: Robert S
authors.initials: RS
authors.lastname: Pynoos
keywords: Juvenile justice; NCTSN; adolescent; age of onset; delinquency; mental health; post-traumatic stress; trauma