Table below is based on a Swedish study of the association between aspirin use and my- ocardial infarction which reports the number of deaths due to myocardial infarction during a follow-up period of about 3 years. The study randomly assigned 1360 patients who had already suffered a stroke to an aspirin treatment (one low-dose tablet a day) or to a placebo treatment.

Myocardial Infarction Yes No Total Placebo 28 656 684 Aspirin 18 658 676 Source: Based on results described in Lancer 338: 1345-1349 (1991)