Table 2.
Age at sexual debut.
| Variable | <15 years (n = 16,108) | 15–17 years (n = 17,696) | ≥18 years (n = 26,810) |
|---|---|---|---|
| 26.6% (25.8–27.4) | 29.2% (28.6–29.8) | 44.2% (43.3–45.2) | |
| YEAR | |||
| 2008 | 45.4, 42.9, 47.9 |
49.8, 47.8, 51.7 |
46.2, 44.7, 47.7 |
| 2013 | 54.6, 52.1, 57.1 |
50.2, 48.3, 52.2 |
53.8, 52.3, 55.3 |
| P | <0.001 | ||
| AGE | |||
| 15–19 | 14.6, 13.8, 15.4 |
17.4, 16.7, 18.2 |
2.7, 2.4, 2.9 |
| 20–24 | 15.5, 14.8, 16.2 |
18.4, 17.7, 19.1 |
18.3, 17.7, 18.9 |
| 25–29 | 18.6, 17.9, 19.3 |
18.8, 18.1, 19.5 |
24, 23.4, 24.7 |
| 30–34 | 15.2, 14.6, 15.9 |
13.9, 13.3, 14.6 |
17.7, 17.1, 18.2 |
| 35–39 | 12.9, 12.2, 13.6 |
13.2, 12.6, 13.9 |
15, 14.5, 15.5 |
| 40–44 | 11.2, 10.6, 11.8 |
9.2, 8.7, 9.8 |
11.6, 11.1, 12.1 |
| 45–49 | 12, 11.4, 12.8 |
9, 8.5, 9.6 |
10.7, 10.2, 11.2 |
| P | <0.001 | ||
| REGION | |||
| North Central | 10.2, 9.4, 11.1 |
14.5, 13.5, 15.6 |
22.4, 21.5, 23.4 |
| North East | 25.8, 23.9, 27.9 |
22.8, 21.3, 24.3 |
11.8, 10.8, 12.8 |
| North West | 45.6, 43.3, 48 |
32, 30.2, 33.8 |
12, 11.1, 12.9 |
| South East | 4.3, 3.8, 4.8 |
6.7, 6.1, 7.3 |
16.3, 15.3, 17.3 |
| South-South | 9.4, 8.6, 10.3 |
14.6, 13.6, 15.6 |
15.7, 14.7, 16.7 |
| South West | 4.6, 4.1, 5.2 |
9.5, 8.8, 10.3 |
21.9, 20.8, 23.1 |
| P | <0.001 | ||
| RESIDENCY | |||
| Urban | 19.3, 17.5, 21.3 |
25.3, 23.7, 26.9 |
46.5, 45, 48 |
| Rural | 80.7, 78.7, 82.5 |
74.7, 73.1, 76.3 |
53.5, 52, 55 |
| P | <0.001 | ||
| RELIGION | |||
| Christian | 25.5, 23.8, 27.3 |
40.3, 38.3, 42.2 |
64.5, 62.9, 66.1 |
| Islam | 72.4, 70.5, 74.2 |
58, 56, 60 | 33.6, 32, 35.2 |
| Other | 2.1, 1.7, 2.6 |
1.7, 1.4, 2.1 |
1.9, 1.6, 2.3 |
| P | <0.001 | ||
| EDUCATION | |||
| None | 68.5, 66.8, 70.1 |
51.5, 49.8, 53.3 |
24.1, 22.8, 25.3 |
| Primary | 17.8, 16.7, 18.9 |
21.3, 20.3, 22.4 |
20, 19.2, 20.9 |
| Secondary | 12.6, 11.7, 13.5 |
24.2, 23.1, 25.4 |
38.6, 37.5, 39.7 |
| Higher | 1.2, 1.0, 1.4 |
2.9, 2.6, 3.3 |
17.4, 16.4, 18.4 |
| P | <0.001 | ||
| WEALTH INDEX | |||
| Poorest | 43.4, 41.6, 45.2 |
35.0, 33.5, 36.5 |
21.6, 20.2, 23.1 |
| Poorer | 35.4, 34.0, 36.9 |
34.4, 33.2, 35.6 |
30.2, 28.7, 31.7 |
| Middle | 24.3, 23.1, 25.5 |
31.1, 30.0, 32.3 |
44.6, 43.1, 46.1 |
| Richer | 16.5, 15.4, 17.5 |
26.6, 25.5, 27.6 |
57.0, 55.5, 58.4 |
| Richest | 8.7, 8.0, 9.5 |
16.6, 15.7, 17.6 |
74.6, 73.3, 75.9 |
| P | <0.001 | ||
N.B. p-values (Pearson's Chi-square) indicate the probability of observing statistically significant relationships between column and row variables.