Outcomes of Methadone Maintenance 1 Year after Admission

Abstract
The authors followed a cohort of 610 opioid users for 1 year after admission to methadone maintenance. At the end of the year, 52% were on methadone and 48% were off methadone. Among subjects on methadone, days of intravenous drug use, crime, and needle-sharing decreased markedly from the month preceding admission to the month preceding the first anniversary of admission. Among subjects off methadone, days of these activities also decreased, but the decreases appeared in large part to be an effect of increased days of incarceration. Among those on methadone, days of productive activity increased markedly. Subjects with more years of intravenous drug use were more likely to be on methadone at the end of the year, and subjects under compulsory supervision were less likely to be on methadone. The findings confirm previous reports of decreased illicit opioid use, decreased crime, and decreased needle risk for infection with the human immunodeficiency virus among opioid users who remain on methadone.

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