Strategies implemented in isolation* | | | | | |
Coverage of general population | 5% | 17% | 28% | 41% | 100% |
Coverage of high-risk population | 23% | 45% | 61% | 84% | 100% |
% of screened population at high risk | 31% | 16% | 14% | 13% | 6% |
Number needed to screen | 3.3 | 6.1 | 7.4 | 7.8 | 16.0 |
Mean cost per high-risk case detected (£) | 75 | 141 | 170 | 180 | 370 |
Strategies implemented incrementally† | | | | | |
Additional coverage of general population | 5% | – | – | 36% | 59% |
Additional coverage of high-risk population | 23% | – | – | 61% | 16% |
% of additional screened population at high risk | 31% | – | – | 12% | 2% |
Additional number needed to screen | 3.3 | 8.8 | 9.8 | 8.5 | 58.8 |
Incremental cost-effectiveness ratio | 75 (43 to 107) | 203 (117 to 289) | 225 (130 to 321) | 196 (113 to 278) | 1358 (784 to 1931) |
Revised incremental cost-effectiveness ratio‡ | 75 (43 to 107) | Extended dominated | Extended dominated | 215 (124 to 306) | 1358 (784 to 1931) |