Improvements in retention rates and changes in client group with methadone maintenance streaming

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Abstract
This study evaluated changes in client population and in retention rates following the introduction of a system of methadone maintenance streaming. A low intervention and low supervision stream was combined with two abstinence-orientated streams. Privileges of take-home doses and local pharmacy dose collection were contingent on successful participation in the abstinence-orientated streams. The clinic also modified policy to allow clients greater control over dose levels. The case notes of the first 100 clients entering the programme in the year prior to the changes (1991) and in the year following the changes (1993) were compared. The results showed a significant increase in retention rates. The demographic and heroin using histories did not change, but the newer programme attracted a greater proportion of clients with no previous history of methadone maintenance treatment. Mean clinic dose increased from 45 mg to 63 mg when clients were allowed to exert control over dose. These findings reveal improved outcomes in a public methadone maintenance programme as a result of policy changes designed to give clients greater control of their treatment.