Table 4. Multivariable logistic regression analysis for independent risk factors of EP.
| Variables* | AOR (95% Ci) | P value |
|---|---|---|
| Smoking at the time of conception | ||
| Yes | 2.68 (1.12–6.40) | 0.026 |
| No | ||
| Prior PID | ||
| Yes | 13.03 (6.19–27.24) | <0.001 |
| No | ||
| Prior EP | ||
| Yes | 1.88 (0.21–16.80) | 0.568 |
| No | ||
| Prior induced abortion | ||
| Yes | 1.79 (0.89–3.60) | 0.101 |
| No | ||
| Prior tubal surgery | ||
| Yes | 0.99 (0.06–14.70) | 0.997 |
| No | ||
| Age at sexual debut (years) | ||
| <16 | 1.70 (0.73–3.94) | 0.212 |
| ≥16 | ||
| Previous use of DMPA | ||
| Yes | 3.01 (1.04–8.69) | 0.041 |
| No | ||
| Current use of LNG-EC | ||
| Yes | 10.15 (2.21–46.56) | 0.003 |
| No |
AOR adjusted odds ratio, CI confidence interval, EP ectopic pregnancy, PID pelvic inflammatory disease, DMPA depot medroxyprogesterone acetate, LNG-EC, levonorgestrel-only pills for emergency contraception
*All included variables had were statistically significant at P <0.05