Comparison between current conditions and increased risk scenarios in order to satisfy cost-effectiveness of no more than $50 000 per QALY saved
| Current condom use (99%) | Decrease in condom use (to 90%) | ||
| Incidence rate (per year) required for current testing frequency to be cost-effective | HIV | 1.2/100 | 0.6/100 |
| Syphilis | 6.7/100 | 3.3/100 | |
| Chlamydia | 704.4/100 | 351.5/100 | |
| Gonorrhoea | 37.4/100 | 18.7/100 | |
| Minimum time between tests (weeks) for cost-effectiveness (at current incidence) | HIV | 41.41 | 29.25 |
| Syphilis | 56.71 | 40.06 | |
| Chlamydia | 58.44 | 41.28 | |
| Gonorrhoea | 29.25 | 20.66 | |
| Minimum time between tests (weeks) for cost-effectiveness (if incidence increases threefold) | HIV | 23.91 | 16.89 |
| Syphilis | 32.74 | 23.13 | |
| Chlamydia | 33.74 | 23.83 | |
| Gonorrhoea | 16.89 | 11.93 |