10 Questions
What is the main difference between prospective and retrospective cohort studies?
Prospective studies follow a cohort into the future for a health outcome, while retrospective studies trace the cohort back in time for exposure information after the outcome has occurred.
How are cohorts typically established in a cohort study?
The investigator controls the selection of the cohort based on common characteristics like age, location, or exposure to certain working environments.
What is another term for both prospective and retrospective cohort studies?
Longitudinal or follow-up studies
In a cohort study, how may cohorts be selected based on exposures known at baseline?
Cohorts may be selected on the basis of exposures known at baseline, e.g. smokers vs. nonsmokers.
What is the purpose of following a cohort over time in a cohort study?
To find how many individuals reach a certain health outcome of interest over time.
In a cohort study, what is the main difference between prospective and retrospective cohorts?
Prospective studies follow a cohort into the future for a health outcome, while retrospective studies trace the cohort back in time for exposure information after the outcome has occurred.
How are cohorts typically established in a cohort study?
The investigator controls the selection of the cohort based on age, location, exposure to a certain working environment, or some other common characteristic.
What is another term for both prospective and retrospective cohort studies?
Longitudinal or follow-up studies
What is the purpose of following a cohort over time in a cohort study?
To find how many reach a certain health outcome of interest over time.
In a cohort study, how may cohorts be selected based on exposures known at baseline?
Cohorts may be selected on the basis of exposures known at baseline, e.g. smokers vs. nonsmokers.
Test your knowledge on cohort studies in epidemiology with this quiz. Learn about the two types of cohort studies and how they are used to investigate health outcomes over time.
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