Calendar rhythm efficacy: A review

R. T. Kambic; V. Lamprecht

doi:10.1007/BF01849633

Calendar rhythm efficacy: A review

R. T. Kambic
, V. Lamprecht

School of Medicine

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Objective: To estimate the unplanned pregnancy rate of calendar rhythm. Design: Meta-analysis of eight studies of calendar rhythm published between 1940 and 1989. Results: There exist few studies of the calendar rhythm method. Analysis of the best of these studies resulted in a conservative estimated Pearl rate of 18.5 ± 1.8, and a less conservative estimate of 15.0 ± 4.0, standardized to 12 months' observation; these results are in the range of other natural and barrier methods. Discussion: We need properly done clinical trials of the calendar rhythm method to scientifically establish its effectiveness.

Original language	English (US)
Pages (from-to)	123-128
Number of pages	6
Journal	Advances in Contraception
Volume	12
Issue number	2
DOIs	https://doi.org/10.1007/BF01849633
State	Published - Jun 1996

ASJC Scopus subject areas

Obstetrics and Gynecology

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abstract = "Objective: To estimate the unplanned pregnancy rate of calendar rhythm. Design: Meta-analysis of eight studies of calendar rhythm published between 1940 and 1989. Results: There exist few studies of the calendar rhythm method. Analysis of the best of these studies resulted in a conservative estimated Pearl rate of 18.5 ± 1.8, and a less conservative estimate of 15.0 ± 4.0, standardized to 12 months' observation; these results are in the range of other natural and barrier methods. Discussion: We need properly done clinical trials of the calendar rhythm method to scientifically establish its effectiveness.",

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AU - Lamprecht, V.

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AB - Objective: To estimate the unplanned pregnancy rate of calendar rhythm. Design: Meta-analysis of eight studies of calendar rhythm published between 1940 and 1989. Results: There exist few studies of the calendar rhythm method. Analysis of the best of these studies resulted in a conservative estimated Pearl rate of 18.5 ± 1.8, and a less conservative estimate of 15.0 ± 4.0, standardized to 12 months' observation; these results are in the range of other natural and barrier methods. Discussion: We need properly done clinical trials of the calendar rhythm method to scientifically establish its effectiveness.

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Calendar rhythm efficacy: A review

Abstract

ASJC Scopus subject areas

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