Adjusted incremental costs and QALYs for the active treatments versus treatment as usual (using complete cases and multiple imputation data at 24 months post-treatment)
| Incremental cost mean (95% CI) | Incremental QALYs; mean (95% CI) | Additional cost per QALY* | |
|---|---|---|---|
| Complete cases | |||
| TAU (n=59) | † | † | † |
| tCBT (n=53) | £574 (−£441 to £1554) | 0.097 (−0.048 to 0.240) | £5917 |
| Exercise (n=61) | £1924 (£782 to £3295) | 0.025 (−0.099 to 0.154) | Dominated |
| Combined (n=61) | £1778 (£690 to £3009) | 0.047 (−0.086 to 0.182) | Dominated |
| Multiple imputation data | |||
| TAU | † | † | † |
| tCBT | £554 (−£121 to £1297) | 0.140 (0.046 to 0.236) | £3957 |
| Exercise | £1256 (£488 to £2097) | 0.071 (−0.019 to 0.165) | Dominated |
| Combined | £1453 (£684 to £2300) | 0.096 (0.000 to 0.189) | Dominated |
*Incremental cost-effectiveness ratio (ICER) expressed relative to next less costly non-dominated alternative. †Reference group.
QALY, quality adjusted life year; TAU, treatment as usual; tCBT, telephone cognitive behavioural therapy.