| All races combined | Whites | African Americans | P value comparing African Americans to Whites |
---|---|---|---|---|
(n = 10,681) | (n = 8451) | (n = 2230) | ||
Characteristic | Mean (SD) or column percent (%) of participants | |||
Age (45–64 years) | 54.2 (5.6) | 54.4 (5.7) | 53.6 (5.8) |  < 0.0001 |
Female (%) | 54.9 | 53.0 | 62.0 |  < 0.0001 |
Body mass index (BMI) | 27.6 (5.3) | 27.0 (4.8) | 29.7 (6.1) |  < 0.0001 |
Weight status (%) |  |  |  |  < 0.0001 |
Underweight (BMI ≤ 18.5 kg/m2) | 0.8 | 0.8 | 0.8 |  |
Normal weight (BMI 18.5–24.9 kg/m2) | 33.0 | 36.4 | 20.9 |  |
Overweight (BMI 25.0–29.9 kg/m2) | 39.5 | 40.1 | 37.4 |  |
Obese (BMI ≥ 30 kg/m2) | 26.7 | 22.7 | 41.0 |  |
Physical activity level (1–5 Baecke units) | 2.5 (.8) | 2.5 (0.8) | 2.1 (0.7) |  < 0.0001 |
Cigarette smoking (%) |  |  |  |  < 0.0001 |
Current | 25.1 | 24.1 | 28.9 | Â |
Former | 33.1 | 35.7 | 24.1 | Â |
Never | 41.7 | 40.1 | 47.0 | Â |
Alcohol intake (%) |  |  |  |  < 0.0001 |
Current | 58.1 | 65.4 | 32.1 | Â |
Former | 17.9 | 16.6 | 22.5 | Â |
Never | 24.0 | 17.9 | 44.4 | Â |
Education level (%) |  |  |  |  < 0.0001 |
Grade school or zero years of education | 8.5 | 5.6 | 18.7 | Â |
High school, but no degree | 13.3 | 11.0 | 21.4 | Â |
High school graduate | 33.1 | 36.3 | 21.5 | Â |
Vocational school | 8.7 | 9.2 | 6.9 | Â |
College | 26.7 | 29.1 | 18.2 | Â |
Graduate or professional school | 9.9 | 8.9 | 13.4 | Â |
Systolic blood pressure (mmHg) | 120.9 (18.1) | 118.8 (16.8) | 128.5 (20.4) |  < 0.0001 |
Diastolic blood pressure (mmHg) | 73.6 (10.7) | 71.8 (9.7) | 79.8 (11.9) |  < 0.0001 |
Blood pressure medications (%) | 29.7 | 25.5 | 44.7 |  < 0.0001 |
Fasting blood glucose (mg/dL) | 108.1 (38.4) | 105.3 (30.9) | 117.8 (56.6) |  < 0.0001 |
Diabetes (%) | 11.1 | 8.7 | 19.4 |  < 0.0001 |
Metabolic syndrome (%) | 44.3 | 43.0 | 49.2 |  < 0.0001 |
Waist circumference (cm) | 96.9 (13.7) | 96.2 (13.2) | 99.3 (15.1) |  < 0.0001 |
Total cholesterol (mg/dL) | 215.1 (41.8) | 214.9 (40.8) | 215.7 (45.1) | 0.4276 |
LDL cholesterol (mg/dL) | 137.8 (38.9) | 137.6 (37.7) | 138.3 (42.7) | 0.3977 |
HDL cholesterol (mg/dL) | 51.5 (17.0) | 50.5 (16.8) | 54.8 (17.3) |  < 0.0001 |
Triglyceride level (mg/dL) | 133.0 (92.9) | 137.8 (93.7) | 116.3 (83.1) |  < 0.0001 |