The aim of the study was to examine risk and vulnerability factors contributing to problems with alcohol use in adolescence. Data relating to seven life areas (medical status, school status, social relationships, family background and relationships, psychological functioning, legal involvement, and alcohol use) was gathered using the ADAD (Adolescent Drug Abuse Diagnosis) interview. A total of 1163 Swedish adolescents (809 boys and 354 girls) between the ages of 12 and 20 years old were interviewed. All had antisocial problems and were detained at special youth homes. It was found that for those aged between 12 and 18 years, the general risk factors for alcohol use were leisure and peer problems, problems associated with family background and relationships, and criminal behavior. These results suggest that drug abuse treatment planning should focus on altering the predisposing factors that exist in these domains. It was also found that the ADAD problem areas seem to be most useful as prognostic indicators of treatment outcome for adolescents with antisocial problems who are under 18 years of age. (Contains 3 tables and 1 figure.)