An Epidemiologist Is Conducting a Program of Research Aimed at Identifying

Multiple Choice

An epidemiologist is conducting a program of research aimed at identifying factors associated with incidence and prevalence of congenital cardiac defects in infants. The researcher has recruited a large number of mothers whose infants were born with cardiac defects as well as mothers whose infants were born with healthy hearts. The researcher is comparing the nutritional habits of all the mothers while their babies were in utero. Which of the following types of study is the epidemiologist most likely conducting?

A) Cohort study
B) Cross-sectional study
C) Case-control study
D) Risk factor study