Exposure-measurement Error is Frequently Ignored when Interpreting Epidemiologic Study Results

Overview

Journal Eur J Epidemiol

Specialty Public Health

Date 2006 Dec 23

PMID 17186399

Citations 47

Authors

Anne M Jurek

George Maldonado

Sander Greenland

Timothy R Church

Affiliations

Soon will be listed here.

Abstract

Introduction: One important source of error in study results is error in measuring exposures. When interpreting study results, one should consider the impact that exposure-measurement error (EME) might have had on study results.

Methods: To assess how often this consideration is made and the form it takes, journal articles were randomly sampled from original articles appearing in the American Journal of Epidemiology and Epidemiology in 2001, and the International Journal of Epidemiology between December 2000 and October 2001.

Results: Twenty-two (39%) of the 57 articles surveyed mentioned nothing about EME. Of the 35 articles that mentioned something about EME, 16 articles described qualitatively the effect EME could have had on study results. Only one study quantified the impact of EME on study results; the investigators used a sensitivity analysis. Few authors discussed the measurement error in their study in any detail.

Conclusions: Overall, the potential impact of EME on error in epidemiologic study results appears to be ignored frequently in practice.

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