Table 3.

Logistic regression odds ratios (and 95% confidence intervals) for whether first sex was premarital among urban female youth ages 15–24 who ever had sex and are from select cities from Nigeria, Kenya, and Senegal

Characteristic	Nigeria	Kenya	Senegal
	Women (n=1438)	Women (n=1821)	Women (n=667)
Age at first sex (continuous)	0.87 (0.82–0.93)***	0.79 (0.75–0.83)***	0.81 (0.75–0.87)***
Education
None/Primary - ref	1.0	1.0	1.0
Secondary	3.57 (2.57–4.98)***	2.04 (1.58–2.62)***	1.36 (0.89–2.10)
Higher	9.84 (5.70–17.00)***	7.90 (4.70–13.29)***	1.70 (1.02–2.82)*
Employment
Working/In school - ref	1.0	1.0	1.0
Not working	1.30 (0.97–1.76)+	0.87 (0.68–1.10)	2.01 (1.22–3.31)**
Wealth (Richest - ref)	1.0	1.0	1.0
Poorest	1.49 (0.91–2.42)	0.33 (0.20–0.54)***	0.97 (0.49–1.90)
Poor	0.84 (0.52–1.34)	0.40 (0.24–0.67)***	1.13 (0.61–2.11)
Middle	0.87 (0.54–1.40)	0.32 (0.19–0.54)***	0.86 (0.48–1.54)
Rich	1.01 (0.63–1.61)	0.33 (0.19–0.57)***	0.56 (0.27–1.19)
Religion
Non-Muslim/Protestant - ref	1.0	1.0	1.0
Catholic	1.0	1.26 (0.97–1.62)	1.0
Muslim	0.25 (0.17–0.38)***	0.37 (0.25–0.53)***	0.09 (0.04–0.20)***
Duration of residence
1 year or less	0.25 (0.16–0.40)***	0.38 (0.19–0.75)**	0.68 (0.38–1.19)
2–5 years	0.29 (0.19–0.45)***	0.26 (0.13–0.51)***	0.64 (0.36–1.14)
>5 years	0.43 (0.25–0.74)**	0.33 (0.15–0.70)**	0.89 (0.49–1.61)
Always (ref)	1.0	1.0	1.0
City
Abuja/Nairobi/Dakar - ref	1.0	1.0	1.0
Ibadan/Mombasa/Pikine	3.05 (1.83–5.09)***	0.97 (0.73–1.30)	0.48 (0.26–0.87)*
Ilorin/Kisumu/Guédiawaye	3.15 (1.90–5.24)***	1.19 (0.88–1.60)	0.85 (0.52–1.39)
Kaduna/na/Mbao	0.51 (0.30–0.85)**	na	0.58 (0.36–0.95)*
Type of residence
Non-slum-ref		1.0	1.0
Slum	na	0.80 (0.62–1.02)+	0.96 (0.64–1.45)

⁺p≤0·10;

^*p≤0·05;

^**p ≤ 0·01;

^***p ≤0·001.