Age (years) | | | | | |
15–19 | 50/144 (35%) | 1.00 | 0.26 | 1.00 | 0.25 |
20–29 | 138/388 (36%) | 1.04 (0.7–1.5) | | 1.44 (0.9–2.2) | |
30–44 | 21/80 (26%) | 0.67 (0.4–1.2) | | 1.28 (0.6–2.6) | |
Marital status | | | | | |
Married | 188/564 (33%) | 1.00 | 0.15 | 1.00 | 0.05 |
Not married | 21/48 (44%) | 1.56 (0.9–2.8) | | 1.92 (1.0–3.7) | |
Education | | | | | |
Low primary or less (<std 4) | 32/95 (34%) | 1.00 | 0.71 | — | |
High primary (std 4–7) | 157/450 (35%) | 1.05 (0.7–1.7) | | | |
Beyond primary | 20/67 (30%) | 0.84 (0.4–1.6) | | | |
Age (years) at first intercourse | | | | | |
12–14 | 37/105 (35%) | 1.00 | 0.94 | — | |
15–18 | 128/374 (34%) | 0.96 (0.6–1.5) | | | |
≥19 | 44/133 (33%) | 0.91 (0.5–1.6) | | | |
Number of pregnancies (gravidity) | | | | | |
1 | 78/202 (39%) | 1.00 | 0.44 | — | |
2 | 46/149 (31%) | 0.71 (0.5–1.1) | | | |
3 | 29/87 (33%) | 0.79 (0.5–1.3) | | | |
4 | 27/74 (36%) | 0.91 (0.5–1.6) | | | |
≥5 | 29/99 (29%) | 0.66 (0.4–1.1) | | | |
Reported number of partners in past year | | | | | |
1 | 192/559 (34%) | 1.00 | 0.74 | — | |
>1 | 17/53 (32%) | 0.90 (0.5–1.6) | | | |
Duration with current partner | | | | | |
≥5 years | 48/192 (25%) | 1.00 | 0.001 | 1.00 | 0.003 |
<5 years | 161/420 (38%) | 1.86 (1.3–2.7) | | 1.90 (1.2–2.9) | |
Condom use | | | | | |
Never | 190/538 (35%) | 1.00 | 0.10 | 1.00 | 0.03 |
Ever | 19/74 (26%) | 0.63 (0.4–1.1) | | 0.55 (0.3–1.0) | |
Oral contraceptive use | | | | | |
Never | 179/525 (34%) | 1.00 | 0.94 | — | |
Ever | 30/87 (34%) | 1.02 (0.6–1.6) | | | |
Residence of current partner | | | | | |
Same household | 183/550 (33%) | 1.00 | 0.17 | — | |
Elsewhere | 26/62 (42%) | 1.44 (0.8–2.5) | | | |
N gonorrhoeae infection | | | | | |
No | 202/598 (34%) | 1.00 | 0.05 | 1.00 | 0.004 |
Yes | 7/11 (64%) | 3.43 (1.0–12) | | 4.46 (1.2–16.0) | |
C trachomatis infection | | | | | |
No | 200/578 (35%) | 1.00 | 0.32 | — | |
Yes | 9/34 (26%) | 0.68 (0.3–1.5) | | | |
T vaginalis infection | | | | | |
No | 181/509 (36%) | 1.00 | 0.05 | 1.00 | 0.009 |
Yes | 25/99 (25%) | 0.61 (0.4–1.0) | | 0.52 (0.3–0.9) | |
Genital warts | | | | | |
No | 199/594 (34%) | 1.00 | 0.06 | 1.00 | 0.04 |
Yes | 10/18 (56%) | 2.48 (1.0–6.4) | | 2.80 (1.1–7.5) | |
TPHA (past syphilis) | | | | | |
Negative | 186/549 (34%) | 1.00 | 0.61 | — | |
Positive | 23/62 (37%) | 1.15 (0.7–2.0) | | | |
TPHA/RPR (active syphilis) | | | | | |
Negative | 191/561 (34%) | 1.00 | 0.78 | — | |
Positive (dual) | 18/50 (36%) | 1.09 (0.6–2.0) | | | |
HIV-1 infection | | | | | |
No | 173/511 (34%) | 1.00 | 0.92 | — | |
Yes | 33/96 (34%) | 1.02 (0.6–1.6) | | | |