Social Studies, 21.02.2020 05:05 shawnaelvaughns
A cohort study was conducted to examine cigarette smoking and the risk of oral cancer. The investigators selected exposed and unexposed subjects so that they had the exactly same distribution of race. This method to address confounding by race is called:
a. Restriction
b. Stratification
c. Matching
Answers: 2
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A cohort study was conducted to examine cigarette smoking and the risk of oral cancer. The investiga...
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