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NCJ Number: 186807 Add to Shopping cart Find in a Library
Title: Program Factors and Treatment Outcomes in Drug Dependence Treatment: An Examination Using Meta-Analysis
Journal: Substance Use and Misuse: An International Interdisciplinary Forum  Volume:35  Issue:12-14  Dated:2000  Pages:1931-1965
Author(s): Michael L. Prendergast; Deborah Podus; Eunice Chang
Date Published: 2000
Page Count: 35
Sponsoring Agency: National Institute on Drug Abuse
Bethesda, MD 20892-9561
Grant Number: R01DA09151;
Type: Program/Project Evaluation
Format: Article
Language: English
Country: United States of America
Annotation: This study examined the impacts of various drug-treatment factors on client outcomes by using data from a meta-analysis of drug dependence effectiveness studies (n=143).
Abstract: Compared with studies of client characteristics and treatment process, limited research has been conducted on how program features of drug-dependence treatment programs may affect client outcomes. Of particular interest are those characteristics of programs that may have a clinically significant impact on outcomes and that are amenable to change within programs. Because of the heterogeneity among studies included in this meta-analysis, the data were analyzed in terms of type of outcome variable (drug use and crime), type of design (single-group and treatment-comparison group), and type of treatment (methadone maintenance, therapeutic communities, outpatient drug free, and detoxification). For the more valid treatment-comparison group studies, the weighted mean effect size was 0.29 for drug use outcomes and 0.17 for crime outcomes. Program factors found to be significantly correlated with effect size in one or more modalities were decade of treatment, researcher involvement in treatment delivery, maturity of the program, counselor/client ratio, treatment implementation, treatment exposure, and methadone dosage. 7 tables, 1 figure, a glossary, 8 notes, 49 references, and appended listing of eligibility criteria for studies
Main Term(s): Drug treatment
Index Term(s): Drug treatment programs; Treatment effectiveness; Treatment techniques
Note: From a Special Issue on Program Quality in Substance Dependency Treatment -- See NCJ-186794.
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