Glossary


Cohort studysearch for term

A cohort study is a non-experimental, epidemiological study where an investigator defines groups of people that are free of disease, but who differ according to their exposure status, where an exposure is considered a potential cause of disease.

[Source: MacMahon and Trichopoulos. 1996. Epidemiology: Principles and Methods. 2nd Edition. Little, Brown. Boston.]
[Source: Rothman, Greenland and Lash. 2008. Modern Epidemiology. 3rd Edition. Lippincott, Williams and Wilkins. Philadelphia, PA.]