| aUnadjusted hazard ratio estimates | bAdjusted hazard ratio estimates | ||||
---|---|---|---|---|---|---|
Effect | Point estimate | 95% CI | P value | Point estimate | 95% CI | P value |
Pregnancy | ||||||
 Not pregnant | Ref | - | - | Ref | - | - |
 Pregnant | 1.1 | 0.8–1.5 | 0.420 | 0.4 | 0.2–0.9 | 0.032 |
 Postpartum | 1.1 | 0.6–1.9 | 0.871 | 1.2 | 0.4–3.2 | 0.744 |
Age | Â | Â | Â | Â | Â | Â |
 25–49 years | Ref | - | - | Ref | - | - |
 15–24 years | 2.4 | 2.0–2.8 | < 0.001 | 2.5 | 2.1–3.1 | < 0.001 |
Gravidity | Â | Â | Â | Â | Â | Â |
 No pregnancies | Ref | - | - | Ref |  |  |
 One pregnancy | 1.4 | 1.1–1.9 | 0.006 | 1.5 | 1.1–1.9 | 0.004 |
 Two or more pregnancies | 1.0 | 0.8–1.2 | 0.789 | 1.7 | 1.3–2.2 | < 0.001 |
Number of live born infants at delivery | 1.02 | 1.0–1.03 | 0.004 | 1.02 | 1.0–1.03 | 0.033 |
Area of residence | Â | Â | Â | Â | Â | Â |
 Peri-urban | Ref | - | - | Ref | - | - |
 Urban | 0.8 | 0.7–1.0 | 0.046 | 0.98 | 0.8–1.2 | 0.870 |
 Rural | 0.94 | 0.6–1.5 | 0.819 | 1.0 | 0.6–1.6 | 0.994 |
Education level | Â | Â | Â | Â | Â | Â |
 Less than one year | Ref | - | - | Ref | - | - |
 At least primary education | 1.9 | 1.0–3.7 | 0.065 | 1.7 | 0.9–3.4 | 0.122 |
 At least secondary education | 3.2 | 1.7–5.9 | < 0.001 | 2.0 | 1.1–3.8 | 0.035 |
 Unknown | 4.2 | 2.2–8.1 | < 0.001 | 3.2 | 1.7–6.3 | 0.001 |
Distance to nearest level 1 road, km | 1.0 | 1.003–1.009 | 0.063 | 0.98 | 0.97–1.0 | 0.089 |
Knows HIV status | ||||||
 Yes | Ref | - | - | Ref | - | - |
 No | 0.9 | 0.7–1.1 | 0.364 | 0.94 | 0.8–1.2 | 0.601 |
 Refused | 1.3 | 0.9–1.8 | 0.125 | 1.5 | 1.0–2.0 | 0.025 |
Age and pregnancy | ||||||
 Not pregnant, 25–49 years | Ref | - | - | Ref | - | - |
 Pregnant; 15–24 years | 2.6 | 1.1–6.1 | 0.032 | 2.3 | 1.0–5.5 | 0.056 |
 Postpartum, 15–24 years | 0.6 | 0.2–2.2 | 0.483 | 0.58 | 0.2–2.0 | 0.389 |