Objective
To evaluate the current state of evidence of the effectiveness of depression prevention programs for youth, assess the degree to which current evidence supports broad implementation, and outline additional steps needed to close the gap between effectiveness and dissemination.
Method
We used the Society for Prevention Research’s Standards of Evidence (Flay et al., 2005) to evaluate the degree to which existing depression prevention programs have established intervention efficacy, effectiveness, and readiness for dissemination. We reviewed all depression prevention programs for youth that have been evaluated in at least two published, randomized controlled trials in which the intervention was compared to a no-intervention control group. A total of 37 studies evaluating 11 different programs were reviewed with regard to depressive symptoms and diagnoses post intervention and at follow-up (at least 6 months).
Results
Eight programs demonstrated significant main effects on depressive symptoms relative to controls in multiple RCTs; five programs had at least one trial with significant main effects present at least one year post-intervention. Two programs demonstrated efficacy for both depressive symptoms and depressive episodes across multiple independent trials. Regarding effectiveness, six programs had at least one study showing significant effects when delivered by endogenous service providers; four programs had significant effects in studies conducted independently of the program developers.
Conclusions
Several programs have demonstrated promise in terms of efficacy, but no depression prevention program for children or adolescents as yet has garnered sufficient evidence of effectiveness under real-world conditions to warrant widespread dissemination at this time.