Card 3 / 10: Both retrospective cohort and case-control study designs are classified as observational studies. What is the essential difference between the design of a retrospective cohort study and the design of a case-control study?
Answer:
In cohort studies, including retrospective cohort studies, the groups are assembled based of their exposure status. In a case-control study, the groups are assembled based on the disease status.
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Epidemiology & Biostatistics Case-control Studies
Author:
Dr.Janet ForresterProfessor
Tufts University School of Medicine
USA
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