Table 4 Results of cost-utility analysis
Incremental cost (£) | Incremental QALY | ICER point estimate (£) (Bootstrapped one sided 95% CI for ICER (£)) | Probability intervention is cost-effective at £20,000 per QALY (%) | Probability intervention is cost-effective at £30,000 per QALY (%) | |
|---|---|---|---|---|---|
Base case | |||||
Cost of intervention £385 | 327 | 0.027 | 12,111 (58,881) | 77 | 89 |
Sensitivity analysis | |||||
EQ-5D at 6 months as estimate of baseline | 327 | 0.054 | 6,056 (37,159) | 93 | 96 |
Control group mean EQ-5D at 6 months as estimate of baseline | 327 | 0.046 | 7,109 (24,853) | 95 | 98 |
Participant payment of £1 per session | 295 | 0.027 | 10,926 (69,085) | 80 | 91 |
Participant payment of £2 per session | 263 | 0.027 | 9,741 (64,638) | 83 | 92 |
Subgroup Analysis | |||||
Referral reason | 239 | 0.0183 | 13,060 (117,893) | 65 | 76 |
CHD | 596 | 0.058 | 10,276 (50,925) | 80 | 89 |
Mental health and CHD plus mental health | |||||
Gender | |||||
Male | 322 | 0.0084 | 38,333 (254,973) | 39 | 47 |
Female | 326 | 0.0362 | 9,006 (39,000) | 85 | 95 |
Age | |||||
<44 | 68 | 0.0656 | 1,037 (16,418) | 98 | 99 |
44-60 | 577 | 0.0179 | 32,235 (314,108) | 37 | 51 |
>60 | 244 | 0.0187 | 13,048 (153,565) | 67 | 76 |
Adherence to NERS | |||||
<16 weeks | 662 | -0.0084 | Dominated | 2.9 | 5.6 |
16 weeks | -18 | 0.049 | Dominant | 100 | 100 |