Table 1—

Subject characteristics by glucose tolerance category

NGTiIFGiIGTIFG + IGTIGMDiabetes
n2446011876254115
Age (years) (mean ± SD)48.6 ± 11.956.4 ± 10.754.0 ± 11.559.1 ± 9.5§56.1 ± 10.9*61.1 ± 7.4*
Sex (female/male)120/12420/4079/3923/53§122/13249/66
BMI (kg/m2)23.5 ± 0.224.7 ± 0.323.7 ± 0.325.8 ± 0.4§24.6 ± 0.2*25.7 ± 0.3*
Abdominal circumference (cm)84.0 ± 0.5187.7 ± 0.885.5 ± 0.990.0 ± 0.9§87.6 ± 0.5*91.0 ± 0.8*
FPG (mmol/l)4.89 (0.58)5.72 (0.39)5.06 (0.50)5.89 (0.39)§5.56 (0.72)*7.56 (3.33)*
2-h plasma glucose (mmol/l)6.22 (1.44)6.94 (1.08)8.69 (1.11)9.19 (1.78)§8.47 (1.56)*15.17 (8.56)*
Fasting insulin (pmol/l)66 (36)81 (48)69 (48)78 (51)78 (54)*102 (96)*
HOMA-S81.9 (45.2)63.9 (36.4)79.2 (50.2)65.8 (38.8)70.7 (46.9)*47.0 (44.7)*
ΔI0–30/ΔG0–30 (pmol/mmol)105.7 (102.5)100.2 (101.9)81.7 (92.6)77.9 (65.0)80.9 (86.5)*29.9 (41.4)*
incAUCins/glu (pmol/mmol)148.6 (138.6)138.5 (146.5)104.3 (83.8)105.6 (77.8)113.3 (90.8)*33.8 (49.0)*
  • Data are reported as mean ± SEM or median (interquartile range) unless otherwise specified.

  • *

    * P < 0.001 NGT versus IGM versus diabetes;

  • iIFG versus iIGT,

  • iIFG versus IFG + IGT,

  • §

    § iIGT versus IFG + IGT, P < 0.05.