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Figure 2 Incidence of Aspirin Use During 6-Year Actuarial Follow-Up in the PACC Project Cohort

Men only; n = 1,640. Ever-use of aspirin was noted in 31.2% of participants, including 51.5% of those with coronary artery calcium versus 25.3% of those without coronary artery calcium (p < 0.001), which remained significant after controlling for National Cholesterol Education Program risk variables (odds ratio 3.05; 95% confidence interval 2.30 to 4.05).