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Question

ro.edu/webapps/assessment/take/launch.jsp?course assessment id 207922 1&course; id 3618525_1&content; id-4804344 1&step; In a suburb in Bogotá Columbia, a representative sample drawn from the adult population (20-69 years) was studied with regard to the relationship between cigarette smoking and chronic physical disease. Of the 963 individuals examined 14% smoked but had no chronic physical disease, 21% had chronic physical disease and did not smoke, 27% smoked and had chronic physical disease, and the remaining 366 neither smoked nor had chronic physical disease. Complete the following table in the space below Disease No A+B C+D No B+D A+C Total

Explanation / Answer

4)

from given information :

therefore prevalence of smking in people without chronic physical disease =0.14/0.52 = ~ 27%

disease exposure Yes No total Yes 0.27 0.14 0.41 No 0.21 0.38 0.59 total 0.48 0.52 1

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