Test if there are significant differences in the following risk factors between persons with and without prevalent coronary heart disease (CHD). compare risk factors in persons with and without prevalent CHD.    Patient Characteristic* History of CHD (n = 194) No History of CHD (n = 4240) p-value* Age, years 57.48 49.58 <.0001 Systolic blood pressure, mmHg 144.94 132.35 <.0001 Diastolic blood pressure, mmHg 87.14 82.89 <.0001 Total serum cholesterol, mg/dL 243.19 236.69 0.048 Body mass index 26.83 25.80 <.0001

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