A randomized clinical trial of two emergency contraceptive pill regimens in a Ugandan population

Acta Obstet Gynecol Scand. 2010 May;89(5):670-6. doi: 10.3109/00016341003611220.

Abstract

Background: Recent trials on emergency contraception (EC) have indicated that levonorgestrel (LNG) used alone has fewer side-effects and is more efficacious than the Yuzpe regimen (high dose combined oral contraceptive pills). However, the experienced side-effects and acceptability may vary between different groups or societies.

Objective: The primary objective of this study was to determine side-effects and acceptability of two emergency contraceptive pill (ECP) regimens among users in Kampala, Uganda.

Study design: Randomized clinical trial.

Methods: A total of 337 women were enrolled in a double blind randomized clinical trial. Women requesting ECPs within 72 hours after unprotected sexual intercourse received either LNG or the Yuzpe regimen. The women returned for follow-up after three days and a follow-up interview was performed after one year.

Results: Levonorgestrel had significantly fewer side-effects than the Yuzpe regimen (p < 0.001). There was a significant association between having worries about the method and experiencing side-effects (p < 0.001). Most women (81%) were prime users of EC. The majority would recommend ECP to other clients.

Conclusions: Levonorgestrel is a superior option to the Yuzpe regimen and should be promoted as the recommended ECP. Having worries about ECP may influence experience of the side-effects. Correct information is critical in promotion of ECP use.

Publication types

  • Comparative Study
  • Multicenter Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Attitude to Health
  • Chi-Square Distribution
  • Contraception, Postcoital / adverse effects
  • Contraception, Postcoital / methods*
  • Contraceptives, Oral, Combined / administration & dosage*
  • Contraceptives, Oral, Combined / adverse effects
  • Contraceptives, Oral, Synthetic / administration & dosage
  • Contraceptives, Oral, Synthetic / adverse effects
  • Contraceptives, Postcoital, Hormonal / administration & dosage*
  • Contraceptives, Postcoital, Hormonal / adverse effects
  • Developing Countries
  • Dose-Response Relationship, Drug
  • Double-Blind Method
  • Drug Administration Schedule
  • Female
  • Follow-Up Studies
  • Humans
  • Levonorgestrel / administration & dosage*
  • Logistic Models
  • Pregnancy
  • Reference Values
  • Risk Assessment
  • Treatment Outcome
  • Uganda
  • Young Adult

Substances

  • Contraceptives, Oral, Combined
  • Contraceptives, Oral, Synthetic
  • Contraceptives, Postcoital, Hormonal
  • Levonorgestrel