title: Growth in adolescent delinquency and alcohol use in relation to young adult crime, alcohol use disorders, and risky sex: a comparison of youth from low- versus middle-income backgrounds.
abstract: BACKGROUND
  This study examined adolescent delinquency and alcohol use in relation to young adult crime, alcohol use disorders (AUDs), and risky sex. Analyses further examined the influences of late childhood involvement in these problem behavior outcomes, with mediation through teen delinquency and alcohol use, and examined differences in the pathways for youth from low- compared to middle-income backgrounds.
  
  
  METHODS
  Multiple-group latent growth curve modeling was conducted using data collected from a sample of 808 youth followed from age 10 to age 24. Self-report assessments included delinquent involvement, alcohol use, and sexual activity in late childhood; delinquency and alcohol use in adolescence; and crime, AUDs, and risky sex in early adulthood.
  
  
  RESULTS
  Late childhood delinquent involvement was associated with young adult crime, AUDs, and risky sex indirectly through adolescent delinquency, and had a persistent direct effect on crime. Adolescent delinquency also mediated the relation between early sex onset and crime. Early alcohol use predicted a higher level of, and a faster rate of increase in, adolescent drinking, which predicted, in turn, young adult AUDs and risky sex. Significant group differences indicated stronger associations between adolescent delinquency and each young adult outcome for youth from low- compared to those from middle-income backgrounds.
  
  
  CONCLUSIONS
  Early intervention may help prevent the development of crime, AUDs, and risky sex behaviors, especially among disadvantaged youth.
authors.affiliation: National Research Institute for Child and Family Studies, Boys Town, NE 68010, USA. masonwa@boystown.org
authors.forename: W Alex
authors.initials: WA
authors.lastname: Mason
authors.forename: Julia E
authors.initials: JE
authors.lastname: Hitch
authors.forename: Rick
authors.initials: R
authors.lastname: Kosterman
authors.forename: Carolyn A
authors.initials: CA
authors.lastname: McCarty
authors.forename: Todd I
authors.initials: TI
authors.lastname: Herrenkohl
authors.forename: J David
authors.initials: JD
authors.lastname: Hawkins
mesh_terms: D000293:Adolescent; D000367:Age Factors; D000428:Alcohol Drinking / Q000523:psychology; D019973:Alcohol-Related Disorders / Q000453:epidemiology* / Q000523:psychology; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007604:Juvenile Delinquency / Q000523:psychology / Q000706:statistics & numerical data*; D008297:Male; D012307:Risk Factors; D012309:Risk-Taking; D012494:Sampling Studies; D012923:Social Class; D014481:United States / Q000453:epidemiology; D047568:Unsafe Sex / Q000523:psychology / Q000706:statistics & numerical data*; D014754:Violence / Q000523:psychology / Q000706:statistics & numerical data*; D055815:Young Adult