Mifepristone v the Yuzpe regimen in women seeking emergency contraception within 72 hours after an episode of unprotected sexual intercourseâ€
| Outcome | Mifepristone | Yuzpe regimen | RRR (95% CI) | NNT (CI) |
|---|---|---|---|---|
| †Abbreviations defined in glossary; RRR, NNT, and CI calculated from data in article. Follow up was for 2 weeks after the expected next menstrual period; for women who were not pregnant, follow up was until the next period. | ||||
| Pregnancy | 0.6% | 3.6% | 83% (46 to 95) | 33 (19 to 77) |