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Trajectories of Heroin Addiction: Growth Mixture Modeling Results Based on a 33-Year Follow-Up Study
Hser, Yih-Ing; Huang, David; Chou, Chih-Ping; Anglin, M. Douglas – Evaluation Review, 2007
This study investigates trajectories of heroin use and subsequent consequences in a sample of 471 male heroin addicts who were admitted to the California Civil Addict Program in 1964-1965 and followed over 33 years. Applying a two-part growth mixture modeling strategy to heroin use level during the first 16 years of the addiction careers since…
Descriptors: Substance Abuse, Narcotics, Drug Addiction, Followup Studies

Hser, Yih-Ing; And Others – Evaluation Review, 1995
Event-history analysis was applied to the life history data of 581 male narcotics addicts to specify the concurrent, postintervention, and durational effects of social interventions on relapse to narcotics use. Results indicate the advisability of supporting methadone maintenance with other prevention strategies. (SLD)
Descriptors: Drug Addiction, Drug Rehabilitation, Intervention, Life Events