Participation in religious activities during contingency management interventions is associated with substance use treatment outcomes.

Many drug abuse treatment programs encourage participation in religious activities, yet there is scant research regarding their effectiveness. Contingency management (CM) interventions sometimes reinforce the completion of non-drug related activities, and church attendance is a popular activity. Cocaine abusers (n = 184) randomized to CM interventions were categorized based on whether or not they engaged in three or more religious activities. Engagers in religious activities (n = 34) remained in treatment longer, were abstinent for longer durations, and submitted more substance-negative samples than non-engagers (n = 150), even after controlling for number of activities completed overall. Thus, encouraging religious involvement during CM treatment may improve during treatment outcomes.