Table 1.
Demographic and metabolic characteristics
| Variable | African-Americans (n = 17) | Whites (n = 17) | P valuea |
|---|---|---|---|
| Age (yr) (mean ± sd) | 36 ± 9 | 37 ± 11 | 0.86 |
| Weight (kg) | 85.1 ± 21.0 | 79.8 ± 19.8 | 0.45 |
| Height (cm) | 163.8 ± 5.9 | 166.7 ± 7.4 | 0.20 |
| BMI (kg/m2) | 31.7 ± 7.5 | 28.4 ± 5.4 | 0.15 |
| WC (cm) | 96.5 ± 17.6 | 96.8 ± 17.0 | 0.94 |
| Hip circumference (cm) | 113.4 ± 16.1 | 109.3 ± 12.8 | 0.05b |
| WHR | 0.85 ± 0.08 | 0.88 ± 0.07 | 0.03b |
| Thigh circumference (cm) | 64.1 ± 10.1 | 55.0 ± 6.7 | <0.01 |
| Fat mass (kg) | 33.4 ± 14.8 | 30.7 ± 13.1 | <0.01b |
| Percent fat (%) | 37.1 ± 9.2 | 36.5 ± 8.0 | 0.02b |
| VAT (cm2) | 71.8 ± 58.2 | 93.3 ± 60.3 | <0.01b |
| SAT (cm2) | 295 ± 195 | 240 ± 147 | 0.21b |
| VAT to SAT ratio | 0.29 ± 0.23 | 0.41 ± 0.18 | 0.04b |
| TG (mg/dl) | 66 ± 47 | 106 ± 91 | 0.04b |
| HDL cholesterol (mg/dl) | 60 ± 17 | 51 ± 8 | 0.05b |
| Family history of DM | 41% | 41% | 0.99 |
| Smokers | 0% | 12% | 0.15 |
| Exercise intensityc | 40% | 18% | 0.08 |
| Alcohol intake (≤1 drink/wk) | 71% | 47% | 0.16 |
| Median household income ($/yr) | 55,000 | 55,000 | 0.70 |
HDL, High-density lipoprotein; DM, diabetes mellitus.
a
Continuous variables compared by unpaired t tests and discrete variables by χ2.
b
Adjusted for BMI by logistic regression.
c
Exercise defined as 30 min or more of vigorous activity three or more times per week.