Podcast # 339: Ectopic Pregnancy Risk Factors - The Emergency Medical Minute

Author: Jared Scott, MD

Educational Pearls:

  • Data is mixed, but some studies show 1-2% of pregnancies are ectopic.
  • Risk factors for ectopic pregnancies include: pelvic inflammatory disease, prior ectopic pregnancy, prior abdominal surgery, prior abortion, advanced maternal age, IUD, tubal blockage, and smoking (including spouse).
  • Greatest risk factor is a prior ectopic pregnancy, which carries a 17x higher risk.
  • Patients with histories of PID and cigarette smoking present educational opportunities.



Moini, A., Hosseini, R., Jahangiri, N., Shiva, M., & Akhoond, M. R. (2014). Risk factors for ectopic pregnancy: A case–control study. Journal of Research in Medical Sciences : The Official Journal of Isfahan University of Medical Sciences, 19(9), 844–849.

Rana, P; Kazmi, I; Singh, R; Afzal, M; Al-Abbasi, FA; Aseeri, A; Singh, R; Khan, R; Anwar, F (2013). “Ectopic pregnancy: a review”. Archives of Gynecology and Obstetrics. 288 (4): 747–57. doi: 10.1007/s00404-013-2929-2.

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