Prior meta-analyses of childhood OCD treatments have focused primarily on treatment efficacy, with minimal to no attention dedicated to treatment response or symptom/diagnostic remission. This is the first meta-analysis to collectively examine the treatment efficacy, treatment response, and symptom/diagnostic remission of evidence-based treatments for youth with OCD. Findings suggest that CBT has a large treatment effect for treatment efficacy (g=1.21), and an excellent RR for both treatment response (RR=2.72) and symptom/diagnostic remission (RR=3.42). Interestingly, there was little difference between treatment response and remission rates for CBT, which may suggest that youth who respond to CBT likely experience marked reductions in symptom severity that typically reach symptom/diagnostic remission. Several CBT treatment moderators in non-active comparison trials were identified that included the percentage of co-occurring anxiety disorders (treatment efficacy and treatment response), the number of therapeutic contact hours (treatment efficacy and symptom/diagnostic remission), and active treatment attrition (treatment efficacy). Additionally, TS/CTD was found to moderate treatment outcome in active comparison trials. The finding that CBT trials that had a greater incidence of co-occurring anxiety disorders exhibited larger treatment effects may suggest that
