Table 1—

Characteristics of participants in the baseline examination of the Sandy Lake Health and Diabetes Project, 1993–1995

VariableMenWomenP value*
n305423
Age (years)30.4 ± 15.929.4 ± 15.80.40
BMI (kg/m2)25.6 ± 5.127.4 ± 6.1<0.0001
Waist circumference (cm)92.5 ± 14.590.6 ± 13.80.08
Body fat (%)25.7 ± 8.641.6 ± 11.2<0.0001
Fasting insulin (pmol/l)93 (58–132)110 (78–169)<0.0001
HOMA-IR (units)3.3 (2.1–5.2)4.0 (2.5–7.0)0.0002
Fasting glucose (mmol/l)6.4 ± 2.96.5 ± 3.20.88
2-h glucose (mmol/l)6.5 ± 4.37.1 ± 4.00.0375
Cholesterol (mmol/l)4.6 ± 1.14.4 ± 0.80.008
LDL cholesterol (mmol/l)2.7 ± 0.92.5 ± 0.70.0002
HDL cholesterol (mmol/l)1.2 ± 0.31.3 ± 0.30.02
Triglyceride (mmol/l)1.2 (0.9–1.9)1.3 (0.9–1.7)0.75
Adiponectin (μg/ml)12.6 (8.7–18.1)14.1 (10.4–19.4)0.002
IGT (%)5.314.2<0.001
Diabetes (%)16.018.10.46
  • Data are means ± SD or median (interquartile range) unless otherwise indicated.

  • * Student’s t tests performed on log transformations of fasting insulin, HOMA-IR, triglyceride, and adiponectin.