Table 2—

Follow-up characteristics for the old cohort in 1990 and 2002 and for the new cohort in 2002

Old cohort 1990New cohort 2002Old cohort 2002
n241330151
Age (years)35.9 (31.8–40.2)39.8 (35.8–44.4)*48.8 (44.6–53.7)
Follow-up (years)6.0 (4.6–7.7)7.4 (5.6–9.9)*18.8 (17.5–20.6)
BMI (kg/m2)25.1 (21.5–30.1)28.5 (24.2–33.1)*27.0 (23.4–31.8)
Normal glucose tolerance150 (62.2)108 (32.7)*51 (33.8)
IGT/IFG47 (19.5)87 (26.4)43 (28.5)
Diabetes44 (18.3)135 (40.9)*57 (37.7)
Diabetic OGTT20 (8.3)65 (19.7)21 (13.9)
Known type 2 diabetes15 (6.2)57 (17.3)28 (18.5)
Known type 1 diabetes9 (3.7)13 (3.9)8 (5.3)
  • Data are median (interquartile range) or n (%).

  • *

    * P < 0.0005, old cohort 1990 vs. new cohort 2002

  • P < 0.0005, old cohort 2002 vs. new cohort 2002. Diabetes: fasting plasma glucose ≥7.0 mmol/l or 2-h plasma glucose ≥11.1 mmol/l; IGT: fasting plasma glucose <7.0 mmol/l and 2-h plasma glucose ≥7.8 and <11.1 mmol/l; IFG: fasting plasma glucose ≥6.1 and <7.0 mmol/l and 2-h plasma glucose <7.8 mmol/l (16).