Characteristics for GLACIER Study participants in whom baseline and 10-year follow-up exams were performed (n = 4,059)

Mean or nSD or %Mean or nSD or %
Sex (male/female)*1,479/2,58036/64
Age (years)45.26.755.26.7
Family history of T2D*697/3,321/4117/82/1925/2,980/15423/73/4
BMI (kg/m2)25.13.726.24.0
Fasting glucose (mmol/l)
2-h glucose (mmol/l)§
Systolic blood pressure (mmHg)1241613018
Diastolic blood pressure (mmHg)78107810
Triglycerides (mmol/l)
NFG vs. IFG*#3,087/96476/242,073/1,95351/49
  • *Values are n and proportion (%).

  • †Yes/no/missing information.

  • ‡A paired samples t test was used to compare mean values at baseline and follow-up, all of which (except DBP) increased significantly (P < 0.0001). Follow-up duration averaged 9.9 ± 0.3 years and ranged from 6 to 13 years.

  • §2-h glucose available for 4,059 participants at follow-up.

  • ¶Triglycerides available in 3,352 and 4,020 participants at baseline and follow-up, respectively.

  • #The number of individuals with IFG increased significantly at follow-up compared with baseline (P < 0.0001). Frequencies were compared between baseline and follow-up using the Mantel-Haenszel χ2 test (1 degree of freedom). T2D, type 2 diabetes; NFG, normal fasting glucose.