Evid Based Nurs 6:14 doi:10.1136/ebn.6.1.14
  • Treatment

Mifepristone was more effective than the Yuzpe regimen for emergency contraception

Mifepristone v the Yuzpe regimen in women seeking emergency contraception within 72 hours after an episode of unprotected sexual intercourse

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)

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