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The objective of a prospective study by Stenestrand et al. (A-20) was to compare

ID: 3208759 • Letter: T

Question

The objective of a prospective study by Stenestrand et al. (A-20) was to compare the mortality rate following an acute myocardial infarction (AMI) among subjects receiving early revascularization to the mortality rate among subjects receiving conservative treatments. Among 2554 patients receiving revascularization within 14 days of AMI. 84 died in the year following the AMI. In the conservative treatment group (risk factor present), 1751 of 19.358 patients died within a year of AMI. Compute the relative risk of mortality in the conservative treatment group as compared to the revascularization group in patients experiencing AMI.

Explanation / Answer

Result:

Risk in conservative treatment group = 1751/19358 = 0.090454

Risk in revascularization group =84/2554 =0.03289

Relative Risk = Risk in conservative treatment group/ Risk in revascularization group

=0.090454/0.03289

=2.75