Association of reported sexual behaviours and contraceptive use with reported unplanned pregnancy in all sexually active women aged 15–24 years
| Reported sexual behaviours and contraceptive use | Women (n) | Unplanned pregnancy (%) | Crude OR (95% CI) | p | Adjusted OR (95% CI)* | p |
|---|---|---|---|---|---|---|
| Age at first sex (years) | ||||||
| ≥16 | 3826 | 23.2 | 1 | 1 | ||
| <16 | 1686 | 29.1 | 1.32 (1.16–1.51) | <0.001 | 1.26 (1.09–1.45) | 0.002 |
| Lifetime number of partners (n) | ||||||
| 1 | 1734 | 16.1 | 1 | 1 | ||
| 2–4 | 3270 | 27.6 | 1.96 (1.69–2.28) | 1.77 (1.51–2.07) | ||
| ≥5 | 515 | 38.1 | 3.14 (2.51–3.91) | <0.001 | 2.39 (1.89–3.04) | <0.001 |
| Ever used modern contraceptive to prevent pregnancy | ||||||
| Yes | 2712 | 25.4 | 1 | 1 | ||
| No | 2808 | 24.5 | 0.99 (0.87–1.12) | 0.81 | 1.15 (1.00–1.33) | 0.05 |
| Casual partner in the past year | ||||||
| No | 4694 | 24.0 | 1 | 1 | ||
| Yes | 824 | 30.7 | 1.40 (1.19–1.66) | <0.001 | 0.87 (0.72–1.05) | 0.15 |
| Regular partner in the past year | ||||||
| No | 790 | 29.6 | 1 | 1 | ||
| Yes | 4728 | 24.2 | 0.77 (0.65–0.91) | 0.002 | 0.98 (0.80–1.19) | 0.84 |
*Adjusted for age, marital status, education, knowledge of where to access to condoms in the village, lifetime number of partners and age at first sex.
CI, confidence interval; OR, odds ratio.