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- Title
Predicting in-treatment performance and post-treatment outcomes in methamphetamine users.
- Authors
Hillhouse, Maureen P.; Marinelli‐Casey, Patricia; Gonzales, Rachel; Ang, Alfonso; Rawson, Richard A.
- Abstract
Aims This study examines the utility of individual drug use and treatment characteristics for predicting in-treatment performance and post-treatment outcomes over a 1-year period. Design, setting and participants Data were collected from 420 adults who participated in the Methamphetamine Treatment Project (MTP), a multi-site study of randomly assigned treatment for methamphetamine dependence. Interviews were conducted at baseline, during treatment and during three follow-up time-points: treatment discharge and at 6 and 12 months following admission. Measurements The Addiction Severity Index (ASI); the Craving, Frequency, Intensity and Duration Estimate (CFIDE); and laboratory urinalysis results were used in the current study. Findings Analyses addressed both in-treatment performance and post-treatment outcomes. The most consistent finding is that pre-treatment methamphetamine use predicts in-treatment performance and post-treatment outcomes. No one variable predicted all in-treatment performance measures; however, gender, route of administration and pre-treatment methamphetamine use were significant predictors. Similarly, post-treatment outcomes were predicted by a range of variables, although pre-treatment methamphetamine use was significantly associated with each post-treatment outcome. Conclusions These findings provide useful empirical information about treatment outcomes for methamphetamine abusers, and highlight the utility of assessing individual and in-treatment characteristics in the development of appropriate treatment plans.
- Subjects
METHAMPHETAMINE abuse; TREATMENT of drug addiction; TREATMENT effectiveness; DRUG abusers; ADDICTION Severity Index; URINALYSIS; AMPHETAMINES; SUBSTANCE abuse diagnosis; DRUG abuse
- Publication
Addiction, 2007, Vol 102, p84
- ISSN
0965-2140
- Publication type
Article
- DOI
10.1111/j.1360-0443.2007.01768.x