Main results
Available data from all but one of the participants (The interaction between treatment arm and functioning over time was significant (F(2, 108) = 3.52, Predicted values of WHODAS 2.0 with 95% confidence interval and error bars.The between-groups effect size for the WHODAS at the end of treatment was d = 0.39 (95% CI 0.09–0.68), a small to medium effect [Tests of WHODAS2.0 EMMsBaseline differences in EMMs are not shown because the model corrects for differences.ES, within-group effect size, difference from baseline WHODAS2.0 score per measurement point.ES, between-group effect size.Post-treatment is at 9 weeks after baseline.Follow up 12 M months is 12 months after post-treatment.