Introduction to Matching in Case-Control and Cohort Studies - J-Stage

cohort  In statistics, epidemiology, marketing and demography, a cohort is a group of subjects who share a defining characteristic Case–control study versus cohort on cohort members Perhaps the most often cited jus- tification for conducting a population-based study is its external validity—that is, the applicability

Another problem with prospective cohort studies is the loss of some subjects to follow up This can significantly affect the outcome Taking incidence analysis A cohort study involves following groups of people over time to observe associations between exposures and the incidence of

A cohort study is a type of epidemiological study in which a group of people with a common characteristic is followed over time  Cohort studies are used to study incidence, causes, and prognosis Because they measure events in chronological order they can be used to distinguish between