Weighted adjusted OR (AOR), p values and 95% CIs for biological, psychosocial and socio-demographic factors associated with HIV positive status in sexually active men in two age groups in greater Edendale and Vulindlela areas, KwaZulu-Natal, South Africa (2014 to 2015)
| 15–24 years old men | 25–35 years old men | |||
| AOR | AOR 95% CI | AOR | AOR 95% CI | |
| 20–24 years old (vs 15–19 years old) | 2.45*** | 1.18 to 5.08 | – | – |
| 30–35 years old (vs 20–25 years old) | – | – | 2.36*** | 1.60 to 3.50 |
| Married (vs never cohabited) | – | – | 0.57 | 0.16 to 2.03 |
| Single but have cohabited (vs never cohabited) | – | – | 1.65 | 0.82 to 3.34 |
| Completed secondary school (vs incomplete schooling) | 0.69 | 0.38 to 1.23 | 0.41*** | 0.27 to 0.63 |
| Household wealth - second quintile (vs poorest quartile) | 0.76 | 0.25 to 2.32 | 0.58 | 0.31 to 1.08 |
| Household wealth - third quintile (vs poorest quartile) | 0.78 | 0.28 to 2.18 | 0.68 | 0.39 to 1.20 |
| Household wealth - fourth quintile (vs poorest quartile) | 0.55 | 0.19 to 1.60 | 0.89 | 0.48 to 1.66 |
| Household wealth - wealthiest quintile (vs poorest quintile) | 0.50 | 0.15 to 1.63 | 1.01 | 0.56 to 1.82 |
| Receiving a social support grant in household (vs not receiving a grant) | – | – | 0.71 | 0.49 to 1.03 |
| Stayed at home (vs have been away from home) | 0.67 | 0.26 to 1.77 | 1.40 | 0.81 to 2.41 |
| Number of lifetime sexual partners (per additional partner)† | 1.04 | 0.99 to 1.09 | 1.02 | 0.99 to 1.03 |
| Sex >5 times in past 12 months. (vs had sex <5 times in past 12 months.) | 1.58 | 0.88 to 2.85 | 1.15 | 0.77 to 1.72 |
| Consistent condom use for previous 12 months (vs inconsistent use) | 1.05 | 0.51 to 2.16 | 0.85 | 0.52 to 1.38 |
| Missing condom use data (vs inconsistent use) | 0.97 | 0.38 to 2.45 | 0.60 | 0.30 to 1.19 |
| Younger than partner (vs not in age disparate partner) | – | – | 3.61* | 1.25 to 10.45 |
| 5 to 9 years older than partner (vs not in age disparate partner) | – | – | 0.63 | 0.40 to 1.00 |
| ≥10 years older than partner (vs not in age disparate partner) | – | – | 0.57 | 0.23 to 1.41 |
| Engaged in transactional sex (vs didn’t engage in transactional sex) | – | – | 0.91 | 0.51 to 1.65 |
| Medically circumcised (vs uncircumcised) | 0–52 | 0.25 to 1.09 | 0.58* | 0.35 to 0.97 |
| Food insecurity in household (one unit increase in food insecurity)† | – | – | 1.57* | 1.05 to 2.34 |
| Depression (one unit increase in depression)† | 1.02 | 0.96 to 1.09 | 0.99 | 0.94 to 1.04 |
| Have drank alcohol (vs never consumed alcohol) | 0.77 | 0.38 to 1.56 | 0.70 | 0.46 to 1.08 |
| n (unweighted) | 816 | 861 | ||
| Pseudo R2 | 0.09 | 0.19 | ||
Outcome variable is HIV status (0=HIV negative, 1=HIV positive). Only those who said they had ever had sex were included in the sample. Some variables were removed from the younger men model to make sure the model is not overfitted. A number of observations are missing (young men: n=113, older men: n=174) in the lifetime sexual partners variable because respondents refused to respond to this item.
**p<0.05 **p<0.01 ***p<0.001.
†See online supplementary appendix 1 for more details on the items in each scale variable.