Comparison of prevalence rates of STIs in cohorts of HIV positive and HIV negative homosexual men
| HIV positive cohort (pH, n = 295) | HIV negative cohort (HIM, n = 1427) | Comparison after age adjustment | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Notested | Nopositive | Prevalence(%) | 95% CI | Notested | Nopositive | Prevalence(%) | 95% CI | OR (95% CI) | p Value | |
| *Ever infected = hepatitis B virus core antibody positive; †currently infected = hepatitis B virus core antibody positive and hepatitis B virus surface antigen positive; ‡vaccinated = hepatitis B surface antibody positive only; | ||||||||||
| OR, odds ratio; CI, confidence interval; NA, not applicable. | ||||||||||
| Hepatitis A | 221 | 165 | 74.7 | 68.4 to 80.3 | 1398 | 970 | 69.4 | 66.9 to 71.8 | 1.0 (0.7 to 1.5) | 0.80 |
| Hepatitis B | ||||||||||
| Ever infected* | 216 | 121 | 56.0 | 49.1 to 62.7 | 1397 | 260 | 18.6 | 16.6 to 20.8 | 3.4 (2.4 to 4.7) | <0.01 |
| Currentlyinfected† | 216 | 8 | 3.7 | 1.6 to 7.2 | 1397 | 7 | 0.5 | 0.2 to 1.0 | 11.5 (2.2 to 61.2) | <0.01 |
| Vaccinated‡ | 216 | 51 | 23.6 | 18.1 to 29.8 | 1397 | 737 | 52.8 | 50.1 to 55.4 | 0.3 (0.2 to 0.5) | <0.01 |
| Syphilis | ||||||||||
| baselineseropositivity | 226 | 42 | 18.6 | 13.7 to 24.3 | 1396 | 42 | 3.0 | 2.2 to 4.0 | 3.7 (2.3 to 5.8) | <0.01 |
| Gonorrhoea | ||||||||||
| Urethralgonorrhoea | 226 | 0 | 0.0 | 0.0 to 1.6 | 1193 | 4 | 0.3 | 0.1 to 0.9 | NA | 0.61 |
| Anal gonorrhoea | 222 | 7 | 3.2 | 1.3 to 6.4 | 1197 | 11 | 0.9 | 0.5 to 1.6 | 6.0 (2.0 to 17.4) | <0.01 |
| Chlamydia | ||||||||||
| Urethralchlamydia | 225 | 5 | 2.2 | 0.7 to 5.1 | 1192 | 11 | 0.9 | 0.4 to 1.6 | 2.4 (0.8 to 7.2) | 0.10 |
| Anal chlamydia | 222 | 13 | 5.9 | 3.1 to 9.8 | 1186 | 52 | 4.4 | 3.3 to 5.7 | 1.5 (0.8 to 2.8) | 0.25 |