Table 5.
Results of scenario analysis of varying attribute levels within plausible ranges on the total utility and probability of test uptake
| Parameter | Attribute and levels | Utility (95% CI) | Probability of uptake |
|---|---|---|---|
| Base case | Cost £100 | 6.3584 (3.739, 10.2210) | 49.9% |
| Time to result 4 days | |||
| PPV 26% | |||
| NPV 96% | |||
| Coverage of test: Severe and mild | |||
| Included in BNF: No | |||
| Reduced cost | Cost £35 | 7.117 (4.801, 10.8525) | 68.1% |
| Reduced time to result | Time to result 2 days | 6.3046 (3.8939, 9.9629) | 48.6% |
| Improved PPV | PPV 70% | 8.4055 (5.565, 12.8900) | 88.6% |
| Improved NPV | NPV 99% | 6.5639 (3.907, 10.5111) | 55.1% |