Case-Control Study:

Question 1

Descriptive or analytic?

Answer 1

Analytical

Question 2

Observational or interventional?

Answer 2

Observational

Question 3

What it is used to measure:

Answer 3

Ascertain the outcome status of individual and then find out their exposure. Measure exposure using density sampling.

Question 4

Strengths:

Answer 4

Good for studying rare outcomes

Good for studying transient exposures

Can examine multiple exposures

Temporal sequencing

Question 5

Limitations:

Answer 5

Usually can only study one outcome

Difficult to select appropriate controls

Susceptible to selection and recall bias.

Question 6

Measure of Occurrence:

Answer 6

Can’t calculate this

Question 7

Measure of association:

Answer 7

Odd ratio