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Weighted prevalence of aspirin use by number of myocardial infarction risk factors among men aged 45 to 79 years in North Carolina, Behavioral Risk Factor Surveillance System, 2013. Risk factors were hypertension, diabetes, smoking, and high cholesterol. Error bars represent 95% confidence intervals.
| No. of Risk Factors | Weighted Prevalence, % (95% Confidence Interval) |
|---|---|
| 0 | 31.0 (25.0–37.0) |
| 1 | 42.1 (36.7–47.6) |
| 2 | 46.8 (40.8–52.8) |
| 3 or 4 | 47.4 (37.8–56.9) |
