Analytical bias in studies of pregnancy outcome

Maureen Henderson; William A. Reinke

doi:10.1016/0002-9378(66)90427-3

Analytical bias in studies of pregnancy outcome

Maureen Henderson, William A. Reinke

Bloomberg School of Public Health

Research output: Contribution to journal › Comment/debate › peer-review

Abstract

This report has described three types of bias introduced into analyses of studies of pregnancy. In each case the bias came from selection of patients for final analysis. The application of the examples of bias described is not restricted to studies of pregnancy outcome. Any comparative study continued over an interval of time is open to similar opportunities for selection leading to similar problems of bias. It is hoped that this report will emphasize the need to control selection during the study or to use adjusted rates during analysis.

Original language	English (US)
Pages (from-to)	735-740
Number of pages	6
Journal	American journal of obstetrics and gynecology
Volume	96
Issue number	5
DOIs	https://doi.org/10.1016/0002-9378(66)90427-3
State	Published - Nov 1 1966

ASJC Scopus subject areas

Obstetrics and Gynecology

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Cite this

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AB - This report has described three types of bias introduced into analyses of studies of pregnancy. In each case the bias came from selection of patients for final analysis. The application of the examples of bias described is not restricted to studies of pregnancy outcome. Any comparative study continued over an interval of time is open to similar opportunities for selection leading to similar problems of bias. It is hoped that this report will emphasize the need to control selection during the study or to use adjusted rates during analysis.

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Analytical bias in studies of pregnancy outcome

Abstract

ASJC Scopus subject areas

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