Which type of study selects subjects based on the presence of the disease being investigated and then matches them with control subjects who do not have the disease?
A) A cross-sectional survey
B) A case-control study
C) An incidence rate
D) A prospective cohort study

Question

Quizplus · Accepted Answer

A case-control study selects subjects based on the presence of the disease being investigated and matches them with control subjects who do not have the disease. This type of study is used to investigate the potential causes of a disease by comparing cases (people with the disease) and controls (people without the disease) and looking at their exposures or other relevant factors.

Which Type of Study Selects Subjects Based on the Presence