Table 4.
Associations of potential risk factors with HIV infection (univariate analysis)
| Potential risk factor | HIV-positive (N = 21) | HIV-negative (N = 324) | OR for association with HIV infection (95% CI) | P value |
|---|---|---|---|---|
| Median age (IQR) | 32 (25–36) | 30 (24–36) | 1.00 (0.95–1.06) | 0.90 |
| Median kilometers from Lake Victoria (IQR) | 12 (10–22) | 10 (8–22) | 1.01 (0.95–1.07) | 0.71 |
| Chlamydia infection | 2 (10%) | 13 (4%) | 2.4 (0.5–11.4) | 0.27 |
| Gonorrhea infection | 0 | 1 (3%) | – | – |
| Positive syphilis serology | 3 (16%) | 23 (7%) | 2.4 (0.6–8.7) | 0.19 |
| Trichomonas infection | 0 | 4 (1%) | – | – |
| Bacterial vaginosis | 0 | 19 (6%) | – | – |
| Candidal infection | 0 | 15 (5%) | – | – |
| Schistosome infection | 17 (81%) | 168 (52%) | 3.9 (1.3–12.0) | 0.015 |
Non-missing data were included in each calculation. For age and kilometers from the lake, the OR corresponds to the OR estimate for one unit increase in the exposure (i.e., per 1-year increase in age and 1-km increase in distance).