Retrospective Cohort Study
Synonyms: Historical Cohort
Most cohort studies are prospective; however, cohort studies that have reconstructed exposure data from historical records are referred to as retrospective cohort studies. In these studies, exposure and outcome data are followed up without actually following cases, which can result in considerable savings of time and money.
Gordis, L. 2000. Epidemiology, 2nd ed., Philadelphia, PA: Elsevier Science.
Last, J. 1983. A Dictionary of Epidemiology, New York, NY: Oxford Medical Publications.
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