Outcome of early medical abortion in relation to women’s characteristics, gestation at presentation and time from mifepristone to misoprostol (n=4838)*
| Continuing pregnancy (n=20) | Not continuing pregnancy (n=4818) | Adjusted odds ratio (aOR) | 95% CI | P values | |
| Current smoker | |||||
| Yes | 9 | 1861 | 0.97 | 0.4 to 2.4 | 0.95 |
| No | 11 | 2957 | Ref. | ||
| Previous birth | |||||
| Yes | 10 | 2126 | 0.63 | 0.2 to 1.6 | 0.33 |
| No | 10 | 2692 | Ref. | ||
| Previous abortion | |||||
| Yes | 13 | 1486 | 5.23 | 1.9 to 14.1 | 0.001 |
| No | 7 | 3332 | Ref. | ||
| Gestation at presentation (weeks) | |||||
| <8 | 10 | 3952 | Ref. | ||
| ≥8 | 10 | 886 | 3.8 | 1.5 to 9.5 | 0.004 |
| Time from mifepristone to misoprostol (hours) | |||||
| 24 | 6 | 2271 | Ref. | ||
| 48 | 14 | 2567 | 1.85 | 0.7 to 4.9 | 0.21 |
*All factors included in the logistic regression models are adjusted for one another.
Ref., reference.