For Questions , use the following narrative
Narrative: Aspirin and polyps
A study done by the Ohio State University Medical Center examined whether or not taking an aspirin a day would help colon cancer patients reduce the chance of getting subsequent colon polyps.635 patients with colon cancer participated; 317 of them were randomly assigned to the aspirin group, and the other 318 patients were assigned to a placebo (non-aspirin) group.54 patients in the aspirin group developed subsequent polyps, compared to 86 patients in the non-aspirin group.Many confounding variables were controlled for in this well-designed randomized experiment.
-{Aspirin and polyps narrative} What percentage of all the patients in this study developed subsequent polyps?
A)140/635 = 22%
B)54/140 = 39%
C)140/495 = 28%
D)None of the above.

Question

Quizplus · Accepted Answer

The total number of patients who developed subsequent polyps is 54 (aspirin group) + 86 (non-aspirin group) = 140. The total number of patients in the study is 635. Therefore, the percentage of patients who developed subsequent polyps is (140/635) * 100 = 22%.

For Questions , Use the Following Narrative