A cohort study of coffee drinking and anxiety was conducted at a university campus. There was a total of 30,000 freshmen who participated. Ten thousand (10,000) were coffee drinkers and 20,000 were not. Of the coffee drinkers, 500 developed anxiety during the 4-year follow-up period. Of the non-coffee drinkers, 400 developed anxiety during the same time period. Assume that no one in the population died or was lost during the follow-up period. Assuming that this study is representative of all freshmen nationwide. If coffee were a contributing factor to anxiety, how many cases of anxiety among freshmen in the general population would be eliminated if coffee was eliminated? 5 cases per 100 freshmen 33 cases per 100 freshmen 1 case per 100 freshmen 60 cases per 100 freshmen
A cohort study of coffee drinking and anxiety was conducted at a university campus. There was a total of 30,000 freshmen who participated. Ten thousand (10,000) were coffee drinkers and 20,000 were not. Of the coffee drinkers, 500 developed anxiety during the 4-year follow-up period. Of the non-coffee drinkers, 400 developed anxiety during the same time period. Assume that no one in the population died or was lost during the follow-up period.
Assuming that this study is representative of all freshmen nationwide. If coffee were a contributing factor to anxiety, how many cases of anxiety among freshmen in the general population would be eliminated if coffee was eliminated?
5 cases per 100 freshmen
33 cases per 100 freshmen
1 case per 100 freshmen
60 cases per 100 freshmen
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