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Type: Artigo de periódico
Title: Implications of cycle length immediately after discontinuation of combined oral contraceptives on use of the Standard Days Method
Author: Arevalo, M
Sinai, I
Olivotti, B
Bahamondes, L
Abstract: Objective: To determine when after discontinuing the use of combined oral contraceptives (COG) women can start using the Standard Days Method (SDM)-a fertility awareness-based family-planning method that is appropriate only for women for whom most menstrual cycles last 26-32 days. Methods: We reviewed data from the medical records of women who attended the Human Reproduction Unit at the University of Campinas, Brazil, between October 16, 1979, and May 5, 2006. The study population comprised women younger than 40 years of age who had recently switched from COG to copper intrauterine devices and whose clinical records contained the information necessary for determining the length of the first menstrual cycle immediately after discontinuing COG. Results: In total, 47.2% of the 2845 women included in the study had a first post-COG cycle of 26-32 days; 40.5% had a second cycle within that range. Conclusion: A first post-COG cycle within the 26-32-day range did not predict a second cycle within range. Women discontinuing COG should not start using the SDM in their first or second post-COG cycle, even if the first cycle falls within the stated range. Instead, they should use a backup method until they meet the necessary eligibility criteria. (C) 2010 International Federation of Gynecology and Obstetrics. Published by Elsevier Ireland Ltd. All rights reserved.
Subject: Cycle regularity
Oral contraceptive discontinuation
Standard Days Method
Country: Irlanda
Editor: Elsevier Ireland Ltd
Rights: fechado
Identifier DOI: 10.1016/j.ijgo.2010.05.017
Date Issue: 2010
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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