Table 1

Baseline characteristics of the study population stratified by glucose status group

NGT groupIntermediate hyperglycemia groupScreening-detected diabetic groupKnown diabetic group
n1,1252328540
Age (years)60.3 ± 7.163.2 ± 7.364.5 ± 6.964.9 ± 7.0
Men (%)45.247.254.046.3
BMI (kg/m2)25.9 ± 3.127.5 ± 3.628.6 ± 4.127.6 ± 4.2
Systolic blood pressure (mmHg)131.6 ± 19.2143.3 ± 20.4148.3 ± 21.3143.2 ± 21.2
Diastolic blood pressure (mmHg)81.4 ± 10.384 ± 9.885.8 ± 11.783.2 ± 10.4
Total cholesterol (mmol/l)6.6 ± 1.26.7 ± 1.06.7 ± 1.46.5 ± 1.4
HDL cholesterol (mmol/l)1.4 ± 0.41.3 ± 0.31.2 ± 0.31.2 ± 0.3
LDL cholesterol (mmol/l)4.6 ± 1.14.6 ± 1.04.5 ± 1.24.2 ± 0.9
A1C (%)5.3 ± 0.56.7 ± 1.06.4 ± 1.77.6 ± 1.6
Diabetes duration (years)6.1 (2.0–11.2)
Current smokers (%)32.624.525.317.1
Antihypertensive medication (%)10.019.325.329.3
Lipid-lowering medication (%)0.70.41.12.4
Family history of myocardial infarction185 (16.5)31 (13.4)15 (17.6)4 (10)
First CHD108 (9.6)24 (10.3)16 (18.8)12 (30.0)
Fatal CHD27 (2.4)6 (2.6)8 (9.4)2 (5)
Incidence rate*
    First CHD1,170.61,310.92,532.84,470.9
    Fatal CHD292.6327.71,266.4745.2
  • Values are presented as means ± SD, median (interquartile range), absolute numbers, or n (%).

  • *The incidence rate is expressed as the number of new cases per 100,000 person-years.