Statistical Analysis
depression, psychiatric, PTSD, anxiety
Data were analyzed using Stata version 17 (StataCorp). Analyses were on intention-to-treat principle, with all randomized participants analyzed in their allocation condition. The first 3 objectives (PTSD and depression symptoms; anxiety, Afghan idioms of distress, and psychiatric difficulties; and changes at 3 months) were examined using a generalized estimating equation (GEE) model. We fit a model with a gaussian distribution, identity link, and an exchangeable correlation matrix. Of primary interest was the intervention × time interaction, which compared the levels of change over time in outcomes of the METRA and TAU groups.