Question 7 / 13: 

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: 1293-1304

The 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)
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Randomized Controlled Trials (RCT), Relative Risk

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Attribution:  Janet, E.A. Forrester, Kwan Ho Kenneth Chui, Steven Cohen, Michael D. Kneeland, Alice Tang, David Tybor. Epidemiology and Biostatistics 2010. (Tufts University OpenCourseWare), http://ocw.tufts.edu/Course/65/ (Accessed 3 May, 2014). License: Creative Commons BY-NC-SA
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