Sensitivity of the results to the discount rate for costs and effects, NCSP strategy (strategy 3, annual screening offer to men and women aged under 25 years compared with no screening).
| PID rate | Discount rate effects (%) | Discount rate costs (%) | Net MOA | Net QALY | Net costs (£) | Cost (£)/MOA | Cost (£)/QALY gained |
|---|---|---|---|---|---|---|---|
| NSCP, National Chlamydia Screening Programme; PID, pelvic inflammatory disease; MOA, major outcomes averted; QALY, quality adjusted life years. | |||||||
| 1% | 0 | 0 | 321 | 11 | 1 644 897 | 5118 | 144 924 |
| 3.5 | 3.5 | 255 | 7 | 1 386 454 | 5432 | 201 371 | |
| 0.0 | 3.5 | 321 | 11 | 1 383 644 | 4305 | 121 907 | |
| 6 | 6 | 219 | 5 | 1 236 641 | 5641 | 243 833 | |
| 10% | 0 | 0 | 1187 | 81 | 1 406 086 | 1185 | 17 265 |
| 3.5 | 3.5 | 924 | 46 | 1 245 877 | 1348 | 27 269 | |
| 0.0 | 3.5 | 1187 | 81 | 1 220 846 | 1029 | 14 991 | |
| 6 | 6 | 786 | 32 | 1 131 554 | 1439 | 35 620 | |
| 30% | 0 | 0 | 2996 | 197 | 959 671 | 320 | 4872 |
| 3.5 | 3.5 | 2334 | 110 | 973 212 | 417 | 8845 | |
| 0.0 | 3.5 | 2996 | 197 | 911 004 | 304 | 4625 | |
| 6 | 6 | 1987 | 76 | 922 869 | 464 | 12 081 | |