Document Classification

Section Type: RESULTS

Text: Major systemic embolism, nonfatal intracranial hemorrhage, or death from hemorrhage or vascular causes occurred in 12 patients assigned to aspirin (3. 9 percent per year) and 28 patients assigned to placebo (9. 9 percent per year) (risk reduction, 61 per cent ; 95 percent confidence interval, 24 to 80 percent ; P = 0. 005) ; major systemic embolism or death from any cause occurred in 13 patients (4. 2 percent) and 33 patients (11. 7 percent), respectively (risk reduction, 65 percent ; 95 percent confidence interval, 33 to 82 percent ; P < 0. 001) ; and death from all causes occurred in 9 patients (2. 8 percent) and 22 patients (7. 4 percent), respectively (risk reduction, 63 percent ; 95 percent confidence interval, 19 to 83 percent ; P = 0. 01).