TABLE 1

Demographic and biochemical characteristics of the study population

Lean CaucasiansObese CaucasiansLean Pima IndiansObese Pima Indians
n7878
Sex
 Female3434
 Male4444
Age (years)32 ± 1130 ± 733 ± 432 ± 5
Body weight (kg)71.4 ± 9.8109.8 ± 16.870.3 ± 9.6109 ± 15.2
BMI (kg/m2)25.4 ± 2.338.2 ± 4.824.0 ± 1.937.9 ± 6.6
Body fat (%)22 ± 935 ± 724 ± 735 ± 5
Plasma ghrelin (fmol/ml)155 ± 25106 ± 2395 ± 1380 ± 36
Plasma glucose (mg/dl)87 ± 791 ± 489 ± 695 ± 7
Plasma insulin (μU/ml)4 ± 310 ± 36 ± 318 ± 10
Plasma leptin (ng/ml)8 ± 753 ± 4710 ± 935 ± 27
  • Data are means ± SD unless otherwise indicated. Caucasians and Pima Indians in the lean and obese groups were matched for age, sex, and body weight.