Card 9 / 17: The following questions are based on what you have learned about cardiovascular disease in Med Foundations I and the assigned article entitled, “A Randomized Trial of Low-Dose Aspirin in the Primary Prevention of Cardiovascular Disease in Women” New England Journal of Medicine 2005; 352: 1293-1304The relative risk of ischemic stroke in the aspirin compared to the placebo group shown in Table 2 was calculated as:
A)
170/19,934 divided by 221/19,942
B)
221/19,942 divided by 170/19,934
C)
170/19,942 divided by 221/19,934
D)
170/39,876 divided by 221/39,876
E)
(170+221) divided by (19,934+19,942)
Answer:
A) 170/19,934 divided by 221/19,942
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Randomized Controlled Trials (RCT), Relative Risk
Author:
Dr.Janet ForresterProfessor
Tufts University School of Medicine
USA
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