How do youth with emotional and substance use problems fare in the juvenile justice system? Objective To use a national sample of adolescents to investigate the association between emotional and substance use problems during adolescence and involvement with the juvenile justice system Focus on three types of involvement: Alison Evans Cuellar, PhD Mailman School of Public Health Columbia University New York, New York Pinka Chatterji, PhD Center for Multicultural Mental Health Research Cambridge Health Alliance – Harvard Medical School Somerville, MA Arrests before age 18 Convictions in juvenile court before age 18 (among those arrested before age 18) Detainment before age 18 (among those convicted before age 18) Motivation Ample evidence that youth with emotional and substance use disorders are overover-represented in the juvenile justice system Can be explained by: Background Youth with emotional and substance use problems are more likely to commit crimes or more likely to commit more serious crimes Youth with emotional and substance use problems are more likely to be sanctioned conditional on committing a particular crime Methods J: Juvenile justice outcome MH: Mental health measure X: Observed personal characteristics u: Unobserved personal characteristics Past studies generally do not control for demographic characteristics characteristics and do not have a community control group 61% of males and 70% of females met DSM diagnostic criteria for any mental disorder other than conduct disorder 17% of males and 21% of females met criteria for ADHD 19% of males and 28% of females met criteria for any affective disorder disorder 51% of males and 47% of females met criteria for substance use disorder disorder J = b0 + b1 MH + b2 X + u + e Previous work generally is based on small and specialized samples samples – typically, detained or incarcerated youth – which represent a relatively small subsub-set of all youth involved in the justice system In large, random sample of arrested and detained youth in Cook County, IL (Teplin (Teplin et al, 2002): Public policy concern that the justice system is biased against youth with these problems – but there have been few systematic empirical tests of this claim Use of the National Longitudinal Study of Adolescent Health (Add Health) builds on work based on more specialized and smaller samples High prevalence of emotional disorders (other than conduct disorder) among youth in the juvenile justice system relative to youth in the community Contribution of this Study Adults with mental disorders are more likely to be arrested and serve longer prison sentences than adults without mental illness (Teplin, Teplin, 1984; Ditton, Ditton, 1999) Control for many potential correlates of emotional/substance use problems and juvenile justice involvement Longitudinal data Capture youth with subsub-threshold disorders and earlier or more limited involvement with the juvenile justice system Primarily interested in estimating b1 Standard estimation methods such as OLS can lead to biased estimates: estimates: if a problem of reverse causality exists (e.g. juvenile justice outcome affects mental health) – although problem is limited by measurement of MH at two points in time during adolescence if unobserved characteristics (u) exist that influence both mental mental health and juvenile justice outcomes (e.g. u is correlated with J and MH) MH) Because of data limitations, we cannot address both of these issues issues directly. We address the problem of unobserved characteristics by using a rich data source to proxy u to the extent possible. 1 2 3 4