Table 1.
Cost-utility analysis
| Time horizon for model |
Additional sensitivity analysis |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 5 yr |
10 yr |
20 yr |
Scenario analysis |
Probabilistic sensitivity analysis |
||||||
| Surgery | WM | Surgery | WM | Surgery | WM | Surgery | WM | Surgery | WM | |
| Total costs | £15,900 | £27,400 | £29,900 | £58,600 | £55,100 | £112,400 | £81,100 | £143,900 | £65,500 | £118,600 |
| Incremental costs | −£11,500 | −£28,700 | −£57,300 | −£62,900 | −£53,000 | |||||
| Total QALYs | 3.83 | 3.53 | 7.62 | 7.04 | 14.28 | 13.12 | 14.28 | 13.12 | 14.26 | 13.14 |
| Incremental QALYs | .29 | .58 | 1.16 | 1.16 | 1.12 | |||||
| ICER∗ | −£39,000 | -£49,300 | −£49,500 | £54,300 | −£47,200 | |||||
WM = weight management; QALY = quality-adjusted life years; ICER = incremental cost-effectiveness ratio.
∗
ICER = difference in total costs between surgery versus WM/Difference in total QALYs between surgery versus WM.