Number of vascular risk factors. Each bar represents percentage of participants with corresponding number of risk factors. The risk factors considered include hypertension, diabetes, current cigarette use, history of symptomatic vascular disease, heavy alcohol use, no reported leisure exercise, positive family history of stroke, high cholesterol, or history of congestive heart failure. Median number of risk factors is 4.0 for women and 3.0 for men. Symptomatic vascular disease includes history of stroke, TIA, myocardial infarction, angina, peripheral vascular surgery, and/or claudication.