Do race/ethnicity and religious affiliation moderate treatment outcomes among individuals with co-occurring PTSD and substance use disorders?

Résumé

The effect of race/ethnicity and religious affiliation on treatment outcomes among 107 individuals with co-occurring substance use disorder (SUD) and full or subthreshold posttraumatic stress disorder (PTSD) was examined in a secondary analysis. Participants were randomly assigned to one of three treatment conditions: dual-disorder treatment of PTSD and SUD using prolonged exposure; single-disorder relapse prevention treatment for SUD; or an active monitoring control group. Results revealed no significant interaction between race/ethnicity and treatment on PTSD and substance use frequency. However, compared to Whites, African Americans had significantly lower levels of PTSD over the course of treatment. Religious affiliation moderated the impact of treatment on substance use frequency and was a significant predictor of PTSD scores during treatment. Results highlight the need to explore factors associated with social identity variables such as race and religion that may enhance or attenuate the mechanisms of treatments for PTSD and SUD.