Table 1.
Distribution (%) of individual risk factors by race and gender in the Atherosclerosis Risk in Communities (ARIC) study at baseline (1987-1989)
| White (n = 10933) |
African-American (n = 3665) |
||||
|---|---|---|---|---|---|
| Total | Women (n=5788) |
Men (n=5145) |
Women (n=2266) |
Men (n=1399) |
|
| Age, mean years (SD) | 54.2 (5.8) | 54.0 (5.7) | 54.8 (5.7) | 53.3 (5.7) | 53.9 (6.0) |
| Blood pressure (%) | |||||
| Optimal | 38.5 | 47.2 | 41.1 | 21.3 | 21.2 |
| Borderline | 22.7 | 20.0 | 26.4 | 20.3 | 24.1 |
| Elevated | 38.7 | 32.8 | 32.4 | 58.4 | 54.7 |
| BMI (%) | |||||
| Optimal | 33.5 | 46.3 | 27.0 | 17.5 | 30.2 |
| Borderline | 39.5 | 30.5 | 51.0 | 34.7 | 42.5 |
| Elevated | 27.0 | 23.2 | 22.0 | 47.8 | 27.2 |
| Diabetes (%) | |||||
| Optimal | 51.8 | 61.7 | 43.6 | 48.7 | 46.1 |
| Borderline | 37.7 | 30.5 | 46.6 | 34.5 | 39.3 |
| Elevated | 10.5 | 7.76 | 9.74 | 16.8 | 14.6 |
| Smoking (%) | |||||
| Optimal | 41.6 | 50.8 | 28.0 | 57.6 | 28.2 |
| Borderline | 32.7 | 24.5 | 48.2 | 17.4 | 34.2 |
| Elevated | 25.7 | 24.7 | 23.9 | 25.0 | 37.6 |
| Hist. Cardiac Disease (%) | |||||
| Optimal | 91.8 | 94.2 | 89.7 | 90.4 | 92.0 |
| Elevated | 8.22 | 5.84 | 10.3 | 9.62 | 8.01 |
Hist. cardiac disease = history of cardiac disease (heart failure or coronary disease): optimal = no history, elevated = history of either. Blood pressure: optimal = Systolic blood pressure (SBP) <120 mmHg and diastolic blood pressure (DBP) < 80 mmHg, borderline = SBP 120-139 mmHg or DBP 80-90 mmHg (pre-hypertension), elevated = SBP≥140 mmHg or DBP ≥ 90 mmHg and/or treatment for hypertension. Body mass index (BMI): optimal = <25 kg/m2, borderline = 25- <30 kg/m2 and elevated+ ≥ 30 kg/m2. Diabetes: optimal = fasting serum glucose (FSG) < 100 mg/dl and no history of diabetes, borderline = FSG 100 – 125 mg/dl and no history of diabetes, elevated = FSG ≥ 126 mg/dl or diabetic. Smoking: optimal = never smoker, borderline = former smoker, elevated = current smoker.