Baseline prevalence of infections comparing sex workers registering with clinic 1985–92 with those in 1996–2002*
| 1985–92 | 1996–2002 | ||||
|---|---|---|---|---|---|
| Prevalence | % | Prevalence | % | Change | |
| *The denominators vary in this table since not all sex workers consented to screening for all STIs. | |||||
| †One or more of gonorrhoea, chlamydia, trichomoniasis, first episode genital herpes, first episode genital warts, infectious syphilis. | |||||
| ‡Hepatitis B anti-core positive, indicating previous infection. | |||||
| Any acute STI† | 99/398 | 24.9 | 29/367 | 7.9 | −68% (p<0.001) |
| Gonorrhoea | 18/396 | 4.5 | 4/364 | 1.1 | −75% (p<0.01) |
| Chlamydia | 42/393 | 10.7 | 17/354 | 4.8 | −55% (p<0.01) |
| HIV | 4/357 | 1.1 | 3/200 | 1.5 | +36% (NS) |
| Hepatitis B‡ | 27/417 | 6.5 | 28/307 | 9.1 | +40% (NS) |
| Syphilis previous treatment | 9/367 | 2.5 | 13/279 | 4.7 | +88% (NS) |
| Syphilis newly diagnosed | 3/367 | 0.8 | 6/279 | 2.2 | +175% (NS) |