Extended regimens of the vaginal contraceptive ring: cycle control

Extended regimens of the vaginal contraceptive ring: cycle control

Author Falbo Guazzelli, Cristina Aparecida Autor UNIFESP Google Scholar
Barreiros, Fernando Augusto Autor UNIFESP Google Scholar
Barbosa, Ricardo Google Scholar
Araujo, Fabio Fernando de Autor UNIFESP Google Scholar
Moron, Antonio Fernandes Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Western Paulista Univ
Abstract Background: Oral contraceptives used for extended periods of time have been extensively studied because of their potential benefits; however, there have been few publications on extended regimen of vaginal rings. the aim of this study was to compare the bleeding patterns of women using extended regimens of the vaginal ring or oral contraceptives.Study Design: Prospective cohort involving 150 women: 75 used vaginal rings that release 120 mcg of etonogestrel and 15 mcg of ethinyl estradiol daily, and 75 took oral contraceptives containing ethinyl estradiol 0.3 mcg and desogestrel 150 mcg. Both groups used their respective contraceptive method over continuous periods of 84 days, followed by a 7-day pause, during 1 year.Results: the total number of scheduled bleeding and spotting days decreased significantly during the 1-year period of the study for both methods (p=.001). and this decrease was significantly higher for oral contraceptive users. Similarly, during the study period, there was a significant reduction in the total number of unscheduled bleeding and spotting days for both methods (p=.01), but this decrease was significantly higher among vaginal ring users (p=.003).Conclusion: Vaginal ring used on an extended regimen is a contraceptive method that offers good cycle control. (C) 2009 Elsevier Inc. All rights reserved.
Keywords Hormonal contraceptive
Vaginal contraceptive ring
Extended regimens
Language English
Date 2009-11-01
Published in Contraception. New York: Elsevier B.V., v. 80, n. 5, p. 430-435, 2009.
ISSN 0010-7824 (Sherpa/Romeo, impact factor)
Publisher Elsevier B.V.
Extent 430-435
Origin http://dx.doi.org/10.1016/j.contraception.2009.05.004
Access rights Closed access
Type Article
Web of Science ID WOS:000271498300005
URI http://repositorio.unifesp.br/handle/11600/31924

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