The relative reliability of oral contraceptives; findings of an epidemiological study

Contraception
E Ketting

Abstract

A study performed in The Netherlands shows that an undesired pregnancy, claimed to be due to "method failure" with oral contraceptive use and resulting in a request for induced abortion, occurs approximately twice per 10,000 woman-years. For these claimed method failures the type of pill used has been recorded during the years 1982-1984. From those data it is clear that the usage of sequential and triphasic OCs was found to be significantly more often amongst women who requested abortion than would have been expected on the basis of their usage in the general population. This over-representation of sequential and triphasic OCs could not be explained by gastro-intestinal disorders or by drug-interaction.

References


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Citations

Dec 1, 1994·British Journal of Obstetrics and Gynaecology·G E Robinson
Aug 1, 1995·British Journal of Obstetrics and Gynaecology·T KorverJ Guillebaud
Mar 1, 1992·American Journal of Obstetrics and Gynecology·S F LanesS Singer
Sep 1, 1990·Contraception·R K Percival-SmithE Guilbert
Jan 1, 1988·Maturitas·E Ketting
Oct 16, 2008·The Journal of Family Planning and Reproductive Health Care·Ian Milsom, Tjeerd Korver
Jul 21, 2006·The Cochrane Database of Systematic Reviews·H A A M Van VlietK F Schulz
Nov 11, 2011·The Cochrane Database of Systematic Reviews·Huib A A M Van VlietFrans M Helmerhorst
Feb 24, 2001·The Medical Journal of Australia·I S Fraser
Aug 7, 1989·The Medical Journal of Australia

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