Table 1—

Characteristics of the University of Minnesota CFRD population by 5-year categories for diabetes duration

Duration of diabetes (years)
<55–10>10All
No fasting hyperglycemia
    n44272293
    Percent female56484551
    Age (years)29 ± 1029 ± 930 ± 729 ± 9
    BMI (kg/m2)22.8 ± 3.923.3 ± 4.021.2 ± 1.922.5 ± 3.6
    A1C (%)*5.9 ± 0.55.9 ± 0.55.9 ± 0.45.9 ± 0.5
    Percent with ↑Ualb:cr (n tested)0 (36)0 (23)0 (20)0 (79)
    Percent with retinopathy (n tested)0 (23)0 (18)0 (16)0 (57)
With fasting hyperglycemia
    n30323799
    Percent female38555149
    Age (years)28 ± 1330 ± 1037 ± 931 ± 11
    BMI (kg/m2)23.7 ± 5.723.3 ± 3.523.4 ± 2.723.5 ± 4.2
    A1C (%)6.2 ± 0.87.0 ± 1.87.2 ± 1.16.8 ± 1.3
    Percent with ↑Ualb:cr (n tested)0 (22)4 (25)14 (36)7 (83)
    Percent with retinopathy (n tested)0 (20)0 (28)16 (37)7 (84)
  • Data are means ± SD unless otherwise indicated. BMI (subjects aged ≥18 years), A1C, microalbuminuria (↑Ualb:cr), and retinopathy results are given for CFRD patients alive 31 December 2005. Subjects with fasting hyperglycemia were compared to those without within each strata of diabetes duration and in total.

  • * Mean A1C for duration of diabetes within last 3 years.

  • Significant differences between fasting hyperglycemia and no fasting hyperglycemia (P < 0.05).