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Definition of Cohort study

Cohort study: A study in which a particular outcome, such as death from a heart attack, is compared in groups of people who are alike in most ways but differ by a certain characteristic, such as smoking. See also: Cohort.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=24051
Last Editorial Review: 10/9/2012

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