Research Article

Insulin Secretory Defect and Insulin Resistance in Isolated Impaired Fasting Glucose and Isolated Impaired Glucose Tolerance

Table 1

Clinical characteristics of subjects.

 NFG/NGTIsolated IFGIsolated IGTIFG/IGT

Number (M/F)2046 (1012/1034)1510 (1098/412)396 (210/186)953 (718/235)
Age (yr)53.0 ± 12.155.5 ± 10.057.1 ± 10.857.0 ± 9.9
BMI (kg/m2)22.1 ± 3.023.5 ± 3.122.9 ± 3.324.3 ± 3.3
FPG (mg/dL)91.0 ± 5.8106.7 ± 5.693.2 ± 5.2108.8 ± 6.4
2 h PG (mg/dL)106.3 ± 18.0112.8 ± 17.4158.8 ± 15.2164.0 ± 17.0
Fasting insulin (μU/mL)4.6 ± 2.26.0 ± 3.45.1 ± 2.87.0 ± 4.3
HbA1c (%)5.80 ± 0.405.83 ± 0.435.93 ± 0.415.98 ± 0.44
Triglycerides (mg/dL)91.4 ± 49.2110.9 ± 61.0105.5 ± 54.4132.1 ± 73.9
Total-cholesterol (mg/dL)208.7 ± 31.2209.5 ± 31.2209.5 ± 28.7213.6 ± 31.5
HDL-cholesterol (mg/dL)65.1 ± 16.161.9 ± 16.862.5 ± 16.057.6 ± 15.6

Clinical characteristics of subjects grouping by stage of glucose tolerance are listed. Data are mean ± SD. and in ANOVA between isolated IGT and isolated IFG.