Table 3.
Sociodemographic factors and behavior | Crude odds ratio (95% CI) | p-value | Adjusted odds ratio (95% CI) | p-Value |
---|---|---|---|---|
Age, years | 1.0 (0.9–1.0) | 0.166 | 0.9 (0.9–1.0) | 0.111 |
Age at first sexual relation | 1.2 (1.0–1.4) | 0.070 | 1.2 (1.0–1.5) | 0.039 |
Frequency of six or more drinks per day | 0.015 | 0.006 | ||
Never | Ref | Ref | ||
Once or less a month | 2.4 (0.7–8.8) | 3.1 (0.8–12.8) | ||
Weekly | 4.0 (1.5–10.4) | 5.1 (1.8–14.5) | ||
Daily or almost daily | 3.8 (1.3–11.6) | 4.9 (1.5–16.6) | ||
Ureaplasma urealyticum, positive | 2.1 (1.0–4.4) | 0.054 | 2.2 (0.9–5.3) | 0.080 |