Table 1 Characterization of study subjects with normal glucose tolerance (NGT) and impaired glucose tolerance (IGT) ^a

Gender

0.0767

 Male (n = 403)

45.0

38.3

 Female (n = 525)

55.0

61.7

Age

45 ± 15

57 ± 15

<0.0001

Waist circumference (cm)

83 ± 10

89 ± 9

<0.0001

Fasting glucose level (mmol/l)

5.17 ± 0.51

5.57 ± 0.52

<0.0001

2-h Post loading glucose level (mmol/l)

6.15 ± 0.95

8.88 ± 0.92

<0.0001

Triglyceride (mmol/l)

1.50 ± 0.96

1.84 ± 1.02

<0.0001

HDL cholesterol (mmol/l)

1.34 ± 0.34

1.30 ± 0.33

0.1423

Weight (kg)

66 ± 13

67 ± 13

0.3205

Body mass index (kg/m²)

23.6 ± 3.6

24.8 ± 3.7

<0.0001

Systolic blood pressure (mmHg)

117 ± 15

126 ± 16

<0.0001

Diastolic blood pressure (mmHg)

78 ± 9

81 ± 10

0.0002

Family History of Diabetes

23.9

23.0

0.0868

Education (<12 years)

7.5

8.1

0.7689

MS NCEP criteria

25.5

58.1

<0.0001

MS IDF criteria

22.8

52.7

<0.0001