Table 1 Group differences in demographic and biological parameters
| Â | Lean | Obese | p-value |
|---|---|---|---|
Gender (% female) | 58.3 | 55.6 | 0.832 |
Race/Ethnicity |  |  | χ2 = 1.02 |
 White (%) | 33.3 | 38.9 |  |
 Hispanic (%) | 25.0 | 27.8 |  |
 African American (%) | 25.0 | 25.0 |  |
 Asian (%) | 16.7 | 8.3 |  |
Age (yrs) | 17.2 ± 0.4 | 17.5 ± 0.3 | 0.396 |
Grade | 11.2 ± 0.4 | 11.4 ± 0.2 | 0.708 |
BMI (kg/m2) | 21.5 ± 0.5 | 37.4 ± 1.2 | 0.000** |
Waist Circumference (cm) | 76.8 ± 1.2 | 112.2 ± 2.8 | 0.000** |
Waist:Height | 0.45 ± 0.01 | 0.66 ± 0.01 | 0.000** |
Waist:Hip | 0.85 ± 0.01 | 0.94 ± 0.01 | 0.000** |
Glucose (mg/dL) | 73.5 ± 1.4 | 77.3 ± 1.5 | 0.083 |
Insulin (IU/mL) | 7.4 ± 0.6 | 18.4 ± 2.0 | 0.000** |
HOMA-IR | 1.3 ± 0.1 | 3.5 ± 0.4 | 0.000** |
Hemoglobin A1C (%) | 5.1 ± 0.1 | 5.4 ± 0.1 | 0.000** |
Total cholesterol (mg/dL) | 160.5 ± 5.9 | 164.1 ± 5.3 | 0.662 |
LDL (mg/dL) | 91.5 ± 5.1 | 102.6 ± 4.7 | 0.125 |
HDL (mg/dL) | 55.0 ± 2.5 | 43.7 ± 1.5 | 0.000** |
Triglycerides (mg/dL) | 70.6 ± 5.6 | 89.4 ± 7.2 | 0.064 |
Systolic BP (mmHg) | 101.3 ± 1.9 | 115.3 ± 2.0 | 0.000** |
Diastolic BP (mmHg) | 63.2 ± 1.7 | 68.0 ± 1.5 | 0.036* |