Outcome measures used in the economic analyses at different study time points
| Outcome measure | Control mean (95% CI) | Intervention mean (95% CI) |
| Baseline EQ-5D-5L | 0.818 (0.741 to 0.895) | 0.744 (0.683 to 0.804) |
| Postintervention EQ-5D-5L | 0.841 (0.788 to 0.893) | 0.823 (0.761 to 0.885) |
| Follow-up EQ-5D-5L | 0.881 (0.836 to 0.926) | 0.838 (0.768 to 0.908) |
| Time in study (weeks) | 36.300 (31.4 to 41.3) | 36.300 (32.6 to 40) |
| QALY | 0.594 (0.507 to 0.681) | 0.567 (0.494 to 0.641) |
| Baseline CDI-2 | 28.7 (25.1 to 32.4) | 29.4 (25.2 to 33.6) |
| Follow-up CDI-2 | 24.6 (19.3 to 29.8) | 20.4 (15.9 to 24.8) |
CDI-2, Children’s Depression Inventory-2; EQ-5D-5L, 5-level version of EuroQol-5 dimension; QALY, quality-adjusted life year.