Which type of epidemiologic study involves a subset of a defined population that can be identified and observed for a sufficient number of person-years to generate reliable incidence or mortality rates?
A) Cohort study
B) Analytic study
C) Experimental study
D) Cross-sectional study

Question

Quizplus · Accepted Answer

A cohort study is the method of epidemiologic study in which subsets of a defined population can be identified and observed for a sufficient number of person-years to generate reliable incidence or mortality rates in the population subsets; usually a large population, a study lasting for a prolonged period (years), or both. (Synonyms: concurrent, follow-up, incidence, longitudinal, prospective study.)

Which Type of Epidemiologic Study Involves a Subset of a Defined