MPH 6011 Final Exam | 100% Correct Answers | Verified | Latest 2024 Version

True or false: A retrospective cohort study is an observational study but a prospective cohort study is an intervention study. - False What study designs are both analytic, observational studies? - Retrospective and prospective cohort studies What is the measure of association if we start with a cohort free of disease and analysis is by cumulative incidence? - relative risk What is the ratio of cumulative incidence rate in exposed compared to cumulative incidence rate in the unexposed? - relative risk What is the measure of association if we start with a cohort free of disease and analysis is by incidence rates with person-time in the denominator? - rate ratio In a cohort study, several design and implementation problems can impact the strength of the measure of association. Choose which of these problems below is least likely in a cohort study? a. information bias b. absence of temporality c. loss to follow-up d. none of the above - b Among the items listed below, which design feature or bias is NOT similarly found in both case-control and cohort studies?