Methodological Issues in Epidemiological Studies of Disease Clusters and Environmental Contamination
نویسندگان
چکیده
Contamination episodes or disease clusters provide unique opportunities to evaluate health effects and investigate aetiology. Epidemiological approaches to research in this area require first establishing the existence of a true cluster. Identification of both the cases and the denominator population, determining individual exposure, collecting data on potential confounders, and linking epidemiological and laboratory studies all need careful methodological attention. The Love Canal chemical dump and other examples are used to illustrate these and related issues.
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