In the article “Aspirin and the treatment of heart failure in the elderly” published in Archives of Internal Medicine (Krumholz et al., 2001), the authors reported the results of their study on the use of aspirin as a discharge medication for patients 65 years or older who were hospitalized with heart failure or coronary artery disease.

Using the summary data in Table 4.28 that was extracted from this article, compute the estimate of the

(a) relative risk of death associated with not using aspirin,

(b) odds ratio for deaths associated with not using aspirin.