TABLE 2

Baseline characteristics of the cohort categorized by glucose status on follow-up

No change in status (n = 3,014)Normal → IFG (n = 164)Normal → diabetes (n = 45)
Men (%)38.653.744.4
BMI (kg/m2)25.8 (4.2)27.8 (4.3)28.5 (6.0)
HDL cholesterol (mmol/l)1.5 (0.4)1.4 (0.4)*1.4 (0.3)
Triglycerides (mmol/l)§1.3 (0.7)1.4 (0.9)*1.4 (0.7)
Fasting glucose (mmol/l)5.3 (0.4)5.7 (0.3)5.6 (0.5)
2-h Glucose (mmol/l)7.2 (2.1)8.5 (2.3)9.6 (3.0)
Fasting insulin (pmol/l)§65.9 (35.9)77.9 (56.9)*77.9 (47.9)*
2-h Insulin (pmol/l)§365.6 (350.7)488.5 (419.6)*407.6 (359.6)
Hypertension (%)36.945.1*48.9
Use of thiazide diuretics (%)15.623.2*13.3
Any subclinical CVD (%)60.868.9*80.0*
Current smoker (%)11.59.8*15.6
  • Values are means (SD) except for skewed variables, which are log-transformed and presented as medians with interquartile ranges. All participants had normal glucose at entry.

  • *

    * P < 0.05;

  • P < 0.001, versus the group that remained normoglycemic;

  • these variables were not measured in the black cohort;

  • §

    § median and interquartile range.