The answer to this question is C. For those who do not know what a cohort study is, this is a type of study that will require the use of a cohort. A cohort is a group of people who share some similar characteristics with each other.
They may have experienced something similar which may be because of an event. The people who are included in the cohort will be followed for a certain period of time in order to see if the would follow several outcomes or not depending on the varying exposures that they will experience in the long run. The rates that will be received will be calculated as a single group.
(Incidence/longitudinal/prospective study)
Starting point is definition of a group of individuals by their exposure status exposed vs non-exposed. Group is then followed over time to see who develops the outcome of interest.
Possible to look at multiple outcomes for a given exposure.
Compare rates of disease in groups with different exposures analytic. Rates can also be calculated for a single group and presented as a descriptive study (with no analysis of exposure).
(slide 38)