Impact of emergency contraception status on unintended pregnancy: observational data from a women’s health practice

  • Nalin Payakachat
  • Denise Ragland
  • Cherri Houston
Keywords: Contraception, Postcoital, Behind-the-Counter Drugs, Health Knowledge, Attitudes, Practice, United States


Objective: This study aimed to determine if non-prescription emergency contraception (EC) availability impacted self-reported unintended pregnancy rates and to assess women’s knowledge and awareness of EC prior to and after non-prescription availability.

Methods: A survey regarding contraception use and knowledge was verbally administered to a cross-sectional, convenience sample of 272 pregnant women receiving prenatal care at a large urban community women’s clinic between August 2003 and October 2008. Statistical analyses determined the differences between two groups (before [BA] and after, [AA] non-prescription EC availability in the U.S. drug market) in terms of self-reported unintended pregnancy rates, knowledge and awareness of EC.

Results: The AA group reported higher incidence of unintended pregnancy when compared to the BA group (90.7% vs. 72.7%, P = 0.0172). The majority of both groups reported that they were not using any contraception at the time of conception (BA-84.4%; AA-83.3%). There was no significant difference in the participants’ awareness of EC between the two groups (BA-46.8% vs. AA-43.0%) nor was there a significant difference between the two groups in the self-reported willingness to use EC in the future (BA-53.1% vs. AA-63.4%). However, among participants who were unaware of EC, 61% reported they would consider using it in the future after receiving brief EC counseling from a pharmacist or student pharmacist. Neither age nor pregnancy intention was associated with self-reported EC awareness but there was an association with income (P = 0.0410) and education (P = 0.0021).

Conclusion: The change from prescription-only to non-prescription status of EC in the U.S. drug market did not impact the unintended pregnancy rate in this patient population. Lack of knowledge and awareness is still a major barrier to widespread EC use.


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How to Cite
Payakachat N, Ragland D, Houston C. Impact of emergency contraception status on unintended pregnancy: observational data from a women’s health practice. Pharm Pract (Granada) [Internet]. 2010Sep.3 [cited 2019Jul.17];8(3):173-8. Available from:
Original Research