Table 2.
Multivariable Logistic Regression for Staphylococcus aureus Rectovaginal Colonization Among 2692 Pregnant Women
| Characteristics | S. aureus Colonized OR (95 % CI)a | P Value |
|---|---|---|
| Age, years | ||
| ≤ 25 | 1.25 (0.85–1.84) | .26 |
| 26–35 | 1.28 (0.94–1.74) | .12 |
| ≥ 36 (reference) | … | … |
| Black race | 1.32 (0.96–1.80) | .08 |
| Government insurance/Self pay | 1.63 (1.19–2.25) | .003 |
| Unmarriedb | 1.04 (0.78–1.39) | .80 |
| Multigravid (≥2) | 1.70 (1.19–2.41) | .003 |
| Multiparous (≥1) | 0.92 (0.67–1.26) | .59 |
| HIV positive | 6.32 (1.54–25.96) | .01 |
| GBS colonization | 1.82 (1.42–2.33) | <.001 |
Abbreviations: CI, confidence interval; GBS, group B Streptococcus; HIV, human immunodeficiency virus; OR, odds ratio.
a ORs comparing S. aureus–positive and S. aureus–negative women.
b Includes never married, widowed, divorced, separated.