Table 1—

Physical and biochemical characteristics of the participants

African AmericanCaucasianP
n2221
Age (years)13.3 ± 0.213.9 ± 0.30.09
Sex (male/female)11/1113/80.43
Family history of type 2 diabetes (+/−)16/610/110.09
Tanner stage
    II–III89
    IV–V1412
Height (cm)159.8 ± 2.1163.3 ± 2.10.25
Weight (kg)58.7 ± 2.561.4 ± 3.50.53
BMI (kg/m2)22.9 ± 0.722.8 ± 1.00.97
BMI percentile72.8 ± 5.668.3 ± 6.30.59
Fat mass (kg)13.9 ± 1.715.8 ± 2.20.50
Body fat %23.6 ± 2.225.4 ± 2.50.61
Visceral adipose tissue (cm2)26.2 ± 3.537.7 ± 4.60.052
Subcutaneous adipose tissue (cm2)131.7 ± 17.8187.2 ± 26.80.09
Testosterone (nmol/l)*11.7 ± 2.213.6 ± 2.20.56
Estradiol (pmol/l)*93 ± 1988 ± 180.87
A1C (%)5.2 ± 0.15.2 ± 0.10.85
  • Data are means ± SEM unless otherwise indicated. Sex and family history of type 2 diabetes compared using χ2 analysis. All other variables compared using an independent Student's t test.

  • *

    * Testosterone in males only and estradiol in females only.