| Failure rates among perfect users and during perfect use: a distinction that matters. | |
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MedLine Citation:
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PMID: 10715365 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To make an informed decision when choosing a contraceptive, women and couples need to know how effective different methods are when used perfectly, where perfect use is defined as following the directions for use. In this article, we show that unbiased estimates of pregnancy rates during perfect use can be guaranteed only if information on consistency and correctness of use is available for each menstrual cycle. The estimated probability of pregnancy during a year of perfect use among the subset of women who always used a method perfectly will be biased upward. |
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Authors:
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R Dominik; J Trussell; T Walsh |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Contraception Volume: 60 ISSN: 0010-7824 ISO Abbreviation: Contraception Publication Date: 1999 Dec |
Date Detail:
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Created Date: 2000-04-20 Completed Date: 2000-04-20 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0234361 Medline TA: Contraception Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 315-20 Citation Subset: IM; J |
Affiliation:
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Division of Biostatistics, Family Health International, Research Triangle Park, North Carolina, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Contraception Behavior
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statistics & numerical data* Contraceptive Agents / standards* Contraceptive Devices / standards* Female Humans Male Pregnancy Rate |
| Chemical | |
Reg. No./Substance:
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0/Contraceptive Agents |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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