Case control and cohort study

Which of the following is a type of follow up study ?

• Cross sectional study

• Case control study

• Cohort study

• Interventional study

Which among the following is false about a case control study?

• Exposure and outcome has already occurred

• Study proceeds from effect to cause

• Uses a control group to support an inference

• Needs follow up

In a case control study, matching is fine to avoid ___?

• Confounding

• Measure exposure

• Measure outcome

• Incidence of disease

Odds ratio in a case control study is an estimate of ?

• Relative risk

• Attributable risk

• Population attributable risk

• Absolute risk

Formula of Odds ratio

• AD/BC

• AC/BD

• BD/AC

• BC/AD

Among the statements, all are true regarding cohort study, EXCEPT ?

• Used for rare diseases

• Proceeds from cause to effect

• Groups identified are observed over a period of time.

• Cohorts are identified prior to disease onset

The incidence rate of a disease can be calculated by which study design

• Cohort study

• Cross sectional study

• Clinical trials

• Case control study

Framingham heart study is a classic example of?

• Cohort study

• Case control study

• Clinical trials

• Cross sectional study

Thalidomide was banned after it was found th be teratogenic by which type of study ?

• Cohort study

• Case control study

• Cross sectional study

• Randomised controlled trials