Comparison Of Cross Sectional, Prospective Cohort Study, Retrospective, & Case Control Study
Retrospective cohort studies use the data that is already obtained for other reasons. Retrospective follow up of the cohort is done. Prospective Cohort study is suitable for rare exposures. The incidence rate and the relative risk of the disease can be determined. A single exposure can determine numerous diseases associated with it. There is minimization of information and selection biases.