Costs and QALYs of cognitive behavioural therapy (CBT) intervention and self-help leaflets
| CBT intervention mean (95% CI) | Leaflets mean (95% CI) | Bootstrapped mean difference (95% CI, p-value) | |
| Intervention costs GBP | 175 (165–185) | 175 (165–185, p=0.001) | |
| Number of respiratory admissions | 0.6 (0.35–0.85) | 1.01 (0.61–1.4) | |
| Costs of respiratory admissions GBP | 1601 (936–2267) | 2689 (1632–3746) | −1089 (−2370–227, p=0.076) |
| Number of ED attendances | 0.37 (0.16–0.59) | 0.81 (0.48–1.14) | |
| Costs of ED attendances GBP | 55 (23–86) | 118 (70–166) | −63 (−121– −7, p=0.036) |
| Total mean cost GBP | 1830 (1143–2517) | 2807 (1706–3909) | −997 (−2349–228, p=0.158) |
| Mean difference in effect QALYs | 0.079 (0.023–0.140, p=0.008) |
ED: emergency department; QALYs: quality-adjusted life-years.