Descriptive characteristics
| Baseline characteristic | Full data set | Complete case analysis | ||
| Control | Intervention | Control | Intervention | |
| Number | 42 | 44 | 17 | 25 |
| Percentage female (%) | 81 | 75 | 88 | 88 |
| Percentage white (%) | 98 | 95 | 100 | 92 |
| Age (years) | 15.4 | 15.4 | 15.5 | 15.3 |
| Baseline CDI-2 | 28.2 | 29.1 | 28.7 | 29.4 |
| Baseline EQ-5D | 0.82 | 0.78 | 0.82 | 0.74 |
| Time from recruitment to follow-up (weeks) | 39 | 37 | 36 | 36 |
CDI-2, Children’s Depression Inventory-2; EQ-5D, EuroQol-5 dimension.