Question

Each year, cardiologists perform procedures to block coronary arteries only to have many of these repaired arteries re-clog (restenosis) afterwards. A study sponsored by the NIH Heart, Lung, and Blood Institute was performed to determine whether prior infection with cytomegalovirus was predictive of arterial restenosis. In 21 of the 49 patients with serologic evidence of cytomegalovirus infection, re-growth of arterial plaque was noted. In contrast, only 2 of the 26 patients seronegative patients had restenosis. Calculate the risk ratio of restenosis associated with CMV infection. Group of answer choices 0.43 0.95 5.57 1.45

          Each year, cardiologists perform procedures to block coronary arteries only to have many of these repaired arteries re-clog (restenosis) afterwards. A study sponsored by the NIH Heart, Lung, and Blood Institute was performed to determine whether prior infection with cytomegalovirus was predictive of arterial restenosis. In 21 of the 49 patients with serologic evidence of cytomegalovirus infection, re-growth of arterial plaque was noted. In contrast, only 2 of the 26 patients seronegative patients had restenosis. Calculate the risk ratio of restenosis associated with CMV infection. 
Group of answer choices
0.43
0.95
5.57
1.45

Added by Robert A.

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