Appraising studies of harm, risk, and etiology

Question 1

studies of harm / etiology may be which types of studies?

Answer 1

cohort or case control

Question 2

what is the purpose of harm / etiology studies?

Answer 2

investigate what happens (or happened) as a result of an exposure

Question 3

what are the important questions to ask for harm / etiology studies?

Answer 3

1. was question and focus clearly defined?
2. clearly defined comparison groups?
3. were exposures and outcomes measured the same way?
4. sufficient follow up?
5. does suggested cause make sense?

Question 4

in a cohort study for harm / etiology, how is risk estimated?

Answer 4

relative risk

Question 5

in a case control study for harm / etiology, how is risk estimated?

Answer 5

odds ratio