This book covers a national sampling of 490 heroin addicts who were admitted to community-based treatment agencies in the Drug Abuse Reporting Program (DARP), and who were relocated and interviewed 12 years
later. The findings and implications from this research project, which began in 1968 for the purpose of evaluating the effectiveness of community-based drug abuse treatment, are summarized in this text. The material is
organized into sections on research design, addiction careers (outcome patterns, death rates, and duration of addiction), treatment histories, predictions of long-range outcomes, factors associated with addiction and
relapse, and integrative prediction models providing a comprehensive review of contemporary thought.