TABLE 1

Clinical characteristics of subjects

Normal glucose toleranceImpaired glucose tolerance
n18598
Sex (M/F)63/12238/60
Age (years)43 ± 149 ± 1*
BMI (kg/m2)26.1 ± 0.328.0 ± 0.5*
Waist-to-hip ratio0.82 ± 0.010.88 ± 0.01*
Lean body mass (kg)51.1 ± 0.551.2 ± 0.8
Fat mass (kg)24.5 ± 0.627.5 ± 1.0*
HbA1c (%)5.11 ± 0.045.56 ± 0.06*
Fasting plasma glucose (mmol/l)5.04 ± 0.045.49 ± 0.05*
Fasting plasma insulin (pmol/l)38 (35–40)53 (47–61)*
  • Data are means ± SE unless noted otherwise.

  • *

    * P < 0.01

  • 95% confidence limits.