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Six-Month Treatment Outcomes of Cocaine-Dependent Patients With and Without PTSD in a Multisite National Trial.

Author(s): Najavits LM, Harned MS, Gallop RJ, Butler SF, Barber JP, Thase ME, Crits-Christoph P

Affiliation(s): National Center for Posttraumatic Stress Disorder, Veterans Affairs Boston Healthcare System, 150 South Huntington Avenue (116B-3), Boston, Massachusetts 02130.

Publication date & source: 2007-05, J Stud Alcohol Drugs., 68(3):353-61.

ABSTRACT. Objective: This study examined 6-month treatment outcomes among 428 cocaine-dependent outpatients with (n = 34) and without (n = 394) posttraumatic stress disorder (PTSD) in a randomized controlled multisite clinical trial of manual-based psychotherapies for substance use disorder (SUD). Method: Assessments were completed at baseline and monthly during the 6-month treatment. With longitudinal mixed-effects models, we compared outcomes between SUD-PTSD and SUD-only patients and also examined rates of within-group change. Results: Results indicated a highly consistent pattern: the SUD-PTSD patients were more impaired to begin with and remained so across time compared with SUD-only patients (with the exception of substance use and addiction-related legal and employment problems, which did not differ between groups). Also, the SUD-PTSD patients improved less than SUD-only patients in alcohol use and the majority of addiction-related psychosocial problems. However, the two groups did not differ significantly in improvement over time on drug use or global psychological severity. Conclusions: The greater impairment and relative lack of improvement of SUD-PTSD patients, compared with those with SUD-only, suggest a need for dual-diagnosis treatments that more directly target their areas of difficulty. (J. Stud. Alcohol Drugs 68: 353-361, 2007).

Page last updated: 2007-05-02

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