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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
n 241 330 151 
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/m225.1 (21.5–30.1) 28.5 (24.2–33.1)* 27.0 (23.4–31.8) 
Normal glucose tolerance 150 (62.2) 108 (32.7)* 51 (33.8) 
IGT/IFG 47 (19.5) 87 (26.4) 43 (28.5) 
Diabetes 44 (18.3) 135 (40.9)* 57 (37.7) 
Diabetic OGTT 20 (8.3) 65 (19.7) 21 (13.9) 
Known type 2 diabetes 15 (6.2) 57 (17.3) 28 (18.5) 
Known type 1 diabetes 9 (3.7) 13 (3.9) 8 (5.3) 
Old cohort 1990New cohort 2002Old cohort 2002
n 241 330 151 
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/m225.1 (21.5–30.1) 28.5 (24.2–33.1)* 27.0 (23.4–31.8) 
Normal glucose tolerance 150 (62.2) 108 (32.7)* 51 (33.8) 
IGT/IFG 47 (19.5) 87 (26.4) 43 (28.5) 
Diabetes 44 (18.3) 135 (40.9)* 57 (37.7) 
Diabetic OGTT 20 (8.3) 65 (19.7) 21 (13.9) 
Known type 2 diabetes 15 (6.2) 57 (17.3) 28 (18.5) 
Known type 1 diabetes 9 (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).

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