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单词 Retrospective studies
释义

Retrospective studies

英语百科

Retrospective cohort study

A retrospective cohort study, also called a historic cohort study, is a longitudinal cohort study that studies a cohort of individuals that share a common exposure factor to determine its influence on the development of a disease, and are compared to another group of equivalent individuals that were not exposed to that factor. Retrospective cohort studies have existed for approximately as long as prospective cohort studies.

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