Huss.32 Sensitivity analysis for nonspecific drug abuse or dependence found pooled OR estimates ranged from 0.76 to 1.01, and all 95% CIs included 1. The effect sizes were no longer heterogeneous (P >.05) after the removal of one study.36 When the model was reanalyzed with the study by Wilens et al36 removed, no significant heterogeneity was found, and the estimated effect was 1.01 (95% CI, 0.70−1.44), suggesting that the study by Wilens et al36 contributed to the heterogeneous pooled effect size.
