Odds Ratio Associated With Use of an FABM Relative to Use of Hormonal Contraception or an IUD
| Use of an FABM(Relative to Use of HormonalContraception/IUD) | ||||
|---|---|---|---|---|
| Unadjusted Modela | Adjusted Model± | |||
| OR | 95% CI | OR | 95% CI | |
| Zone (ref :Northern) | ||||
| Middle | 1.9b | 1.0, 3.5 | 1.5 | 0.7, 3.4 |
| Central | 2.0b | 1.1, 3.8 | 1.1 | 0.4, 2.8 |
| Residence (ref: rural) | ||||
| Urban | 2.7c | 1.5, 4.7 | 1.2 | 0.6, 2.4 |
| Age (continuous) | 1.0 | 0.9, 1.0 | 1.1c | 1.0, 1.1 |
| Union/marital status (ref: currently married/cohabitating) | ||||
| Formerly married or cohabitating | 0.7 | 0.3, 1.5 | 0.6 | 0.2, 1.3 |
| Never married or cohabitating | 2.3d | 1.3, 4.0 | 1.5 | 0.8, 2.9 |
| Parity (continuous) | 0.8c | 0.7, 0.9 | 0.7c | 0.6, 0.8 |
| Education (ref: none) | ||||
| Attended primary or middle | 1.7 | 1.0, 3.0 | 1.4 | 0.8, 2.5 |
| Attended secondary | 4.4c | 2.3, 8.6 | 2.1b | 1.1, 4.1 |
| Religion (ref: no religion) | ||||
| Any Christian | 2.0b | 1.1, 4.0 | 1.1 | 0.6, 2.3 |
| Muslim | 1.5 | 0.7, 3.3 | 1.2 | 0.4, 3.3 |
| Traditional religion/other | 0.3 | 0.1, 1.1 | 0.3 | 0.1, 1.2 |
| Wealth (ref: poorest 60%) | ||||
| Richest 40% | 3.0c | 2.0, 4.5 | 1.7b | 1.0, 2.7 |
| Importance of avoiding pregnancy now (ref: very important) | ||||
| Not at all important | 1.8b | 1.0, 3.2 | 1.9 | 0.9, 3.7 |
| Somewhat important | 1.3 | 0.6, 2.7 | 1.3 | 0.6, 3.2 |
| Correct knowledge of approximate fertile time (ref: incorrect knowledge) | ||||
| Correct | 1.9d | 1.2, 3.1 | 1.5 | 0.9, 2.6 |
Abbreviations: CI, confidence interval; FABM, fertility awareness-based method; IUD, intrauterine device; OR, odds ratio.
↵a Model includes only contracepting women who rely or may rely primarily on an FABM (n=206), as well as users of hormonal contraception or an IUD (n=786).
↵± Adjusted for all other variables shown.
↵b P<.05.
↵c P<.001.
↵d P<.01.