© 2004 Fellowship of Postgraduate Medicine
REVIEW
How to assess epidemiological studies
Correspondence to:
Correspondence to:
Ms Julia H Zaccai
Institute of Public Health, University of Cambridge, Forvie Site, Robinson Way, Cambridge CB2 2SR, UK; jhz21{at}cam.ac.uk
Assessing the quality of an epidemiological study equates to assessing whether the inferences drawn from it are warranted when account is taken of the methods, the representativeness of the study sample, and the nature of the population from which it is drawn. Bias, confounding, and chance can threaten the quality of an epidemiological study at all its phases. Nevertheless, their presence does not necessarily imply that a study should be disregarded. The reader must first balance any of these threats or missing information with their potential impact on the conclusions of the report.
Keywords: epidemiological studies
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This article has been cited by other articles:
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Tooth, L., Ware, R., Bain, C., Purdie, D. M., Dobson, A.
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161: 280-288
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