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9. A cohort study was conducted to study the association of coffee drinking and anxiety in a
population-based sample of adults. Among 10,000 coffee drinkers, 500 developed
anxiety. Among the 20,000 non-coffee drinkers, 200 cases of anxiety were observed. What is the relative risk of the anxiety associated with coffee use? Show your work.
(3 points)

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the Formula is (a/(a+b))/(c/(c+d)) A (anxiety in coffee drinkers group) : 500 B (not anxiety in... View the full answer

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