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Survival analysis in drug program evaluation. Part I. Overall program effectiveness.

D G Fisher, M D Anglin

    The International Journal of the Addictions
    |February 1, 1987
    PubMed
    Summary
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    This study compared methadone maintenance programs in three California counties using survivorship analysis. Los Angeles County demonstrated superior outcomes in retention, addiction, and employment compared to San Bernardino and Orange Counties.

    Area of Science:

    • Addiction research
    • Public health
    • Statistical analysis

    Background:

    • Methadone maintenance treatment (MMT) is a key intervention for opioid use disorder.
    • Evaluating long-term outcomes of MMT programs across different regions is crucial for public health policy.
    • Variability in MMT program effectiveness necessitates comparative outcome analysis.

    Purpose of the Study:

    • To conduct a summative evaluation of methadone maintenance programs in three California counties.
    • To compare treatment outcomes using survivorship analysis.
    • To identify regional differences in MMT program effectiveness.

    Main Methods:

    • Survivorship analysis, a statistical technique, was employed.
    • Retrospective interviews were conducted with 297 heroin addicts 6-8 years post-admission.

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  • Outcome measures included retention, incarceration, addiction, crime, dealing, and employment status.

    • Main Results:

    • Survival curves indicated significant differences in outcomes across the three counties.
    • Los Angeles County exhibited the most favorable outcomes across all measured variables.
    • San Bernardino County showed intermediate outcomes, while Orange County had the least favorable outcomes.

    Conclusions:

    • Methadone maintenance programs in Los Angeles County appear more effective in achieving positive long-term outcomes.
    • Regional factors may significantly influence the success of MMT programs.
    • Further research into the specific program characteristics contributing to these differences is warranted.