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Longitudinal substance use and biopsychosocial outcomes following therapeutic community treatment for substance dependence

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Version 3 2024-06-18, 18:52
Version 2 2024-06-03, 09:05
Version 1 2020-01-30, 15:00
journal contribution
posted on 2024-06-18, 18:52 authored by Petra StaigerPetra Staiger, P Liknaitzky, AJ Lake, S Gruenert
The Therapeutic Community (TC) model is considered an effective treatment for substance dependence, particularly for individuals with complex presentations. While a popular approach for this cohort across a number of countries, few studies have focussed on biopsychosocial and longer-term outcomes for this treatment modality. This study reports on substance use, dependence, and biopsychosocial outcomes up to 9 months post-exit from two TC sites. Methods: A longitudinal cohort study (n = 166) with two follow-up time points. Measures included substance use, dependence, subjective well-being, social functioning, and mental and physical health. Generalized Linear Models were employed to assess change over time. Results: At 9 months, 68% of participants reported complete 90-day drug abstinence. Alcohol frequency and quantity were reduced by over 50% at 9 months, with 32% of the sample recording 90-day abstinence at 9 months. Both alcohol and drug dependence scores were reduced by over 60%, and small to medium effect sizes were found for a range of psychosocial outcomes at 9 months follow-up, including a doubling of wellbeing scores, and a halving of psychiatric severity scores. Residents who remained in the TC for at least 9 months reported substantially better outcomes. Conclusions: With notably high study follow-up rates (over 90% at 9 months post-exit), these data demonstrate the value of the TC model in achieving substantial and sustained improvements in substance use and psychosocial outcomes for a cohort with severe substance dependence and complex presentations. Implications for optimal length of stay are discussed.

History

Journal

Journal of Clinical Medicine

Volume

9

Article number

ARTN 118

Pagination

1 - 15

Location

Switzerland

Open access

  • Yes

ISSN

2077-0383

eISSN

2077-0383

Language

English

Publication classification

C1 Refereed article in a scholarly journal

Issue

1

Publisher

MDPI