A Researcher Is Interested in Studying Whether There Is an Association

A researcher is interested in studying whether there is an association between neural tube defects and use of acetaminophen during the first 3 months of pregnancy.  He randomly chooses a group of women who have just delivered babies with neural tube defects, and a second group of women who delivered apparently healthy babies.  These 2 groups were then asked about their use of acetaminophen during the first 3 months of pregnancy.  Which of the following measures of association are the investigators most likely to report?

A) Median survival
B) Odds ratio
C) Prevalence ratio
D) Relative rate
E) Relative risk

Correct Answer:

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