Variable | Unadjusted Hazard Ratio | 95% CI | Adjusted Hazard Ratio | 95% CI |
---|---|---|---|---|
Age (years) | ||||
15–19 | Reference | Reference | ||
20–24 | 0.55 | 0.44–0.69* | 0.53 | 0.42–0.68* |
25–29 | 0.34 | 0.27–0.43* | 0.34 | 0.26–0.43* |
30–34 | 0.20 | 0.16–0.25* | 0.21 | 0.16–0.27* |
35–39 | 0.14 | 0.11–0.18* | 0.15 | 0.12–0.20* |
40–44 | 0.09 | 0.07–0.12* | 0.10 | 0.08–0.14* |
45–49 | 0.09 | 0.07–0.12* | 0.10 | 0.08–0.14* |
Region | ||||
Kouilou | Reference | Reference | ||
Niari | 1.37 | 1.13–1.66* | 0.66 | 0.51–0.85* |
Lekoumou | 0.63 | 0.51–0.77* | 0.50 | 0.41–0.63* |
Bouenza | 0.93 | 0.77–1.11 | 0.75 | 0.61–0.92* |
Pool | 0.32 | 0.25–0.42* | 0.33 | 0.25–0.44* |
Plateaux | 0.51 | 0.40–0.65* | 0.45 | 0.34–0.58* |
Cuvette | 0.81 | 0.66–0.98* | 0.56 | 0.45–0.69* |
Cuvette-Ouest | 0.43 | 0.33–0.56* | 0.34 | 0.26–0.44* |
Sangha | 0.87 | 0.72–1.07 | 0.46 | 0.36–0.58* |
Likouala | 0.45 | 0.35–0.58 | 0.35 | 0.27–0.45* |
Brazzaville | 1.15 | 0.97–1.37 | 0.55 | 0.42–0.73* |
Pointe-Noire | 1.38 | 1.18–1.61* | 0.63 | 0.49–0.82* |
Residential status | ||||
Urban | Reference | Reference | ||
Rural | 0.50 | 0.46–0.54* | 0.99 | 0.81–1.23 |
Wealth quintiles | ||||
Poorest | Reference | Reference | ||
Poorer | 1.67 | 1.48–1.90* | 1.34 | 1.17–1.53* |
Middle | 2.56 | 2.21–2.96* | 1.67 | 1.40–2.01* |
Richer | 2.80 | 2.43–3.22* | 1.86 | 1.53–2.25* |
Richest | 2.95 | 2.55–3.43* | 1.94 | 1.57–2.39* |
Health insurance coverage | ||||
Insured | 1.20 | 0.90–1.58 | ||
Uninsured | Reference | |||
Marital status | ||||
Never in union | Reference | Reference | ||
Currently in union/living with a man | 0.33 | 0.28–0.38* | 0.59 | 0.47–0.75* |
Formerly in union/lived with a man | 0.42 | 0.35–0.50* | 0.71 | 0.55–0.91* |
Exposure to media | ||||
Yes | 1.72 | 1.56–1.91* | 1.12 | 0.99–1.26 |
No | Reference | Reference | ||
Education | ||||
No formal education | Reference | Reference | ||
Primary | 1.70 | 1.34–2.17* | 1.42 | 1.11–1.81* |
Secondary+ | 2.59 | 2.05–3.26* | 1.76 | 1.37–2.25* |
Religion | ||||
Protestant/Catholic | Reference | |||
Islam | 0.60 | 0.28–1.25 | ||
Spiritual | 0.97 | 0.89–1.06 | ||
Ever used anything or tried to delay or avoid getting pregnant | ||||
Yes | 1.44 | 1.29–1.61* | 1.37 | 1.21–1.54* |
No | Reference | Reference | ||
Parity | ||||
Nil | Reference | Reference | ||
1–3 | 0.71 | 0.60–0.85* | 0.94 | 0.71–1.24 |
4+ | 0.38 | 0.31–0.45* | 0.92 | 0.67–1.26 |
Age at first birth | ||||
No birth | Reference | Reference | ||
< 20 | 0.56 | 0.47–0.66* | 1.32 | 1.05–1.65* |
20–24 | 0.47 | 0.39–0.57* | 1.13 | 0.90–1.42 |
25+ | 0.35 | 0.27–0.45* | 1.00 | – |
Age at first marriage | ||||
Not married | Reference | Reference | ||
< 20 | 0.36 | 0.31–0.42* | 0.94 | 0.79–1.13 |
20–24 | 0.36 | 0.30–0.42* | 1.04 | 0.87–1.26 |
25+ | 0.28 | 0.23–0.34* | 1.00 | – |
Age at first sexual intercourse | ||||
< 18 | Reference | |||
18+ | 0.90 | 0.70–1.04 | ||
Total lifetime number of sex partners | ||||
1–2 | Reference | Reference | ||
3–4 | 1.43 | 1.24–1.63* | 1.28 | 1.11–1.47* |
5+ | 1.63 | 1.42–1.86* | 1.49 | 1.30–1.72* |