CLASSIFICATION, DIRECTION, AND PREVENTION OF BIAS IN EPIDEMIOLOGIC RESEARCH
CLASSIFICATION, DIRECTION, AND PREVENTION OF BIAS IN EPIDEMIOLOGIC RESEARCH
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DOI：
10.1097/00043764-199203000-00010
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发表时间：
1992-03-01
影响因子：
3.2
通讯作者：
NOSEWORTHY, AL
中科院分区：
文献类型：
--
作者：
CHOI, BCK;NOSEWORTHY, AL
We describe an extension of an existing framework used by several investigators for classifying various types of bias. The framework consists of three categories of bias: selection, information, and confounding. The existing framework is expanded to include subclassification according to the type of study design: cross-sectional, case-control, retrospective cohort, and prospective cohort. Direction and method of prevention of biases within each category in the framework are discussed. This article provides a useful checklist for epidemiologists to determine possible sources and methods of reduction of bias that are specific to a particular type of study design.
