Relative risk ratios (confidence intervals) of using long-acting contraceptive methods or pills versus condoms and withdrawal among married women aged 15–49 years using contraception by selected characteristics, Tehran, Iran, 2014
| Characteristic | Long-acting methods† vs condoms/withdrawal | Pills vs condoms/ withdrawal |
|---|---|---|
| Living children (n) | ||
| 0 | 0.04*** (0.02–0.09) | 1.64 (0.72–3.72) |
| 1 | 0.11*** (0.07–0.15) | 1.08 (0.55–2.12) |
| 2 | 0.23*** (0.17–0.30 | 1.20 (0.64–2.23) |
| 3+ (Ref.) | 1.00 | 1.00 |
| Fertility intentions | ||
| Want a(another) child | 0.65 (0.36–1.18) | 0.79 (0.46–1.38) |
| Unsure (Ref.) | 1.00 | 1.00 |
| Want no more children | 1.69* (1.03–2.77) | 0.89 (0.52–1.53) |
| Schooling (years) | ||
| <12 | 1.73** (1.21–2.46) | 1.03 (0.63–1.67) |
| 12 | 1.14 (0.84–1.55) | 0.84 (0.57–1.25) |
| 13+ (Ref.) | 1.00 | 1.00 |
| Employment status | ||
| Employed | 0.97 (0.68–1.38) | 1.46 (0.93–2.29) |
| Unemployed (Ref.) | 1.00 | 1.00 |
| Migration streams | ||
| Non-migrants | 1.09 (0.75–1.59) | 0.58* (0.34–0.96) |
| From other urban areas to the city of Tehran | 1.34 (0.90–2.00) | 0.74 (0.43–1.26) |
| From rural areas to the city of Tehran (Ref.) | 1.00 | 1.00 |
| Residential districts | ||
| Northern | 0.75* (0.56–0.99) | 0.52*** (0.34–0.78) |
| Central | 1.01 (0.78–1.31) | 0.69* |
| Southern (Ref.) | 1.00 | 1.00 |
*Significant at p≤0.05; **p≤0.01; ***p≤0.001.
Ref., reference category.
†Long-acting methods include tubectomy, vasectomy, intrauterine device, Norplant® and contraceptive injection.