Table 3. Multivariate logistic regression analysis of factors associated with HIV positivity in pregnant women of Zhaojue and Butuo.
| Variable | P | OR | 95% CI |
|---|---|---|---|
| Age, yrs | |||
| <25 | 1.0 (Reference) | ||
| 25–30 | 0.20 | 1.29 | 0.88–1.89 |
| ≥30 | 0.005 | 1.72 | 1.17–2.52 |
| Education level | |||
| Primary school or below | 1.0 (Reference) | ||
| Secondary or high school | 0.03 | 0.28 | 0.09–0.89 |
| Junior college or above | 0.32 | 0.49 | 0.12–2.01 |
| Husband’s history of out-migrating for work | |||
| No | 1.0 (Reference) | ||
| Yes | 0.005 | 1.52 | 1.14–2.03 |
| Husband's history of STD infection | |||
| No | 1.0 (Reference) | ||
| Yes | 0.002 | 2.38 | 1.37–4.13 |
| Number of previous births | |||
| 0 | 1.0 (Reference) | ||
| 1 | 0.018 | 1.58 | 1.07–2.33 |
| 2 | 0.001 | 1.81 | 1.23–2.65 |
| ≥3 | 0.322 | 1.15 | 0.76–1.75 |
OR: odds ratio; CI: confidence interval.