Abstract
Background: The efficacy of emergency contraceptive pills (ECPs) is currently uncertain. The best way to obtain a robust efficacy estimate would be to conduct a placebo-controlled randomized trial. We aimed to assess the feasibility of identifying women eligible for such a trial. Study Design: We conducted a survey of women aged 18-35 years in five sexually transmitted disease clinics and urgent care centers in Kenya and the United States in 2006. Results: Of 177 women surveyed, only 10 (6%) reported no reasons for exclusion from a potential efficacy trial. Of the rest, 149 (83%) had not recently had sex that conferred a substantial risk of pregnancy. At all sites combined, the rate of identification of potentially eligible women was 0.6 per day of interviewing. Conclusion: A placebo-controlled efficacy trial of ECPs would likely require several thousand participants. Recruitment for such a trial in these types of sites would be prolonged.
Original language | English (US) |
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Pages (from-to) | 118-121 |
Number of pages | 4 |
Journal | Contraception |
Volume | 77 |
Issue number | 2 |
DOIs | |
State | Published - Feb 1 2008 |
Externally published | Yes |
Keywords
- Efficacy trial
- Emergency contraceptive pill
- Recruitment
ASJC Scopus subject areas
- Medicine(all)
- Obstetrics and Gynecology