Weighted logistic regression modelling of association between sex-related risk factors and HIV among MSM in Dar es Salaam, Tanzania
| Variable | Category | OR (95% CI) | AOR (95% CI)* | P value† |
| Age at sexual debut (years) | ≤15 | 1 | ||
| 16–18 | 0.8 (0.5–1.2) | |||
| >18 | 0.8 (0.5–1.3) | |||
| Had sex with a woman past 12 months | No | 1 | 1 | |
| Yes | 0.5 (0.3–0.7) | 0.9 (0.6–1.2) | 0.861 | |
| Bought sex past 1 year | No | 1 | 1 | |
| Yes | 1.1 (0.7–1.4) | 1.7 (0.6–3.0) | 0.37 | |
| Sold sex past 1 year | Yes | 1 | ||
| No | 0.8 (0.2–5.1) | |||
| Number of male receptive partners where no payment is involved past month | 1 | 1 | 1 | |
| 2 and above | 1.6 (1.1–7.5) | 3.0 (1.8–12.0) | 0 | |
| Number of non-paying insertive male partners past month | 1 | 1 | 1 | |
| 2 and above | 1.5 (0.5–11.2) | 1.6 (0.4–23.1) | 0.531 | |
| Used a condom with last receptive non-paying partner | No | 1 | 1 | |
| Yes | 3.1 (1.2–7.2) | 4.1 (1.4–7.8) | 0 | |
| Paid another man for anal sex past month | No | 1 | 1 | |
| Yes | 1.5 (0.5–9.2) | 1.6 (0.6–11.8) | 0.142 | |
| Used a condom with last paid male partner | Yes | 1 | 1 | |
| No | 1.1 (0.5–2.1) | 1.5 (0.7–3.0) | 0.284 | |
| Used a condom with last paying male partner | Yes | 1 | 1 | |
| No | 0.6 (0.3–1.0) | 0.4 (0.2–0.9) | 0 | |
| Sold sex to another man past month | No | 1 | 1 | |
| Yes | 1.3 (0.7–2.2) | 2.5 (0.7–8.5) | 0.156 | |
| Had a condom break during anal sex in past month | No | |||
| Yes | 1.5 (1.7–3.6) | 1.2 (0.7–2.1) | 0.431 | |
| Ever participated in group sex | No | 1 | 1 | |
| Yes | 3.1 (1.2–15.6) | 3.4 (1.7–13.6) | 0 |
*Adjusted for all variables in the table with p value of ≤0.2 in the bivariate model.
†P value for adjusted OR.
AOR, adjusted OR; MSM, men who have sex with men.