Cohort Study

What is a cohort study and how many different types are there?

• A study that stalks people, 18

• A study that follows groups of people overtime, 3

• A study that compares exposure history of people, 4

• A study that follows a group of people that have the same disease, 6

What are some limitations to prospective studies?

• Free and takes barely any time

• Expensive and allows us to study multiple outcomes in the same exposure

• Time consuming, costly, and bias is more likely

• Higher chance for bias, inexpensive, and doesn't take long

Prospective and Retrospective studies are the same thing

• True

• False

What can selection bias affect the association between?

• Exposure and Outcome

• Disease and Outcome

• Exposure and Disease

Rate ratio compares the incidence rate among the exposed to the incidence rate among the unexposed

• True

• False