Case-Control Studies

Question 1

What are the main issues with case-control studies?

Answer 1

Selection bias, information bias, confounding, Ineffective for rare diseases and it’s difficult to be sure exposure precedes the disease

Question 2

How do you conduct a case-control study?

Answer 2

Recruit a group of cases, recruit a group of controls, exposure status is then determined

Question 3

What are case-control studies used for?

Answer 3

Rare exposures, preliminary investigations (cheap & quick)

Question 4

How can confounders be removed from case-control studies?

Answer 4

Matching up similar cases & controls