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A hypothetical randomized controlled trial wants to nd out if participation in a new tobacco cessation program reduced cigarette use. A total of 575 smokers

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A hypothetical randomized controlled trial wants to nd out if participation in a new tobacco cessation program reduced cigarette use. A total of 575 smokers were randomized to either the new tobacco cessation program (exposed) or the standard of care {unexposed}; 280 were randomized to the new program. Reduction in the number of cigarettes by 25% was considered successful (D+l, and reduction by less than 25%. maintenance of cigarette count. or an increase was considered unsuccessful (D-l. At the end of the study follow-up, 150 participants were considered to have experienced successful reduction in cigarette smoking; of these, 80 participated in the new program. Draw the 2x2 table resulting from this study. D+ D E+ l ll l

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