Efficacy of intervention on primary efficacy outcome measure
Depression
The unadjusted mean difference on the BADS from Time 1 to Time 2 was − 10.41 (95% CI − 19.67 to − 1.27) for the AP group, compared to − 7.35 (95% CI − 14.84 to 0.14) in the AE group and − 1.51 (95% CI − 13.78 to 10.76) for the WL group, indicating positive trend toward improvements in activity levels in the AP and AE groups.A mixed-effects linear model was conducted using total BADS scores via the Missing data was estimated using restricted maximum likelihood estimation. F-statistics with effective degrees of freedom were estimated using Satterthwaite’s method in On the BADS (Fig. Visualisation of individual change between the three groups on the Behavioural Activation for Depression Scale (BADS) across each time point. Visualisations include those who were re-randomised into either the AP or AE group. Higher BADS scores represent greater activity engagement (i.e., improvement)