Context
Although depression frequently co-occurs with substance abuse, few individuals entering substance abuse treatment have access to effective depression treatment.
Objective
The Building Recovery by Improving Goals, Habits and Thoughts (BRIGHT) study is a community-based effectiveness trial that compared residential substance abuse treatment to residential treatment plus group cognitive behavioral therapy (CBT) for depression delivered by substance abuse treatment counselors. The authors hypothesized that intervention clients would have improved depression and substance use outcomes as compared to clients receiving usual care.
Design
A nonrandomized controlled trial using a quasi-experimental intent-to-treat design in which four sites were assigned to alternate between the intervention and usual care conditions every four months over a two-and-a-half-year period.
Setting
Four treatment programs in Los Angeles County
Participants
1,262 clients were screened for persistent depressive symptoms (Beck Depression Inventory-II (BDI-II) >17). 299 clients were assigned to receive either usual care (N=159) or usual care plus the intervention (N=140). Follow-up rates at three and six months after the baseline interview were 88.1% and 86.2% for usual care and 85.7% and 85.0% for the intervention group.
Intervention
Sixteen two-hour group sessions of CBT for depression
Main Outcome Measures
Change in depression symptoms, mental health functioning, and days of alcohol and substance use.
Results
BRIGHT clients reported significantly fewer depressive symptoms (p<0.001 at three and six months) and had improved mental health functioning (p<0.001 at three-months and p<0.01 at six months). At six months, BRIGHT clients reported fewer drinking days (p<0.05) and fewer days of problem substance use (p<0.05) on days available.
Conclusions
Providing group CBT for depression to clients with persistent depressive symptoms receiving residential substance abuse treatment is associated with improved depression and substance use outcomes. These results provide support for a new model of integrated care.