TABLE 1

Subject characteristics

Diabetic patients with nephropathyDiabetic patients without complicationsNormal control subjects
n261510
Age (years)39.8 ± 10.5 (19–69)46.6 ± 12.2 (27–64)36.4 ± 8.04 (25–50)
Age at onset of diabetes (years)11.3 ± 8.0 (2–33)18.2 ± 9.2 (4–42)
Duration of diabetes (years)28.6 ± 8.1 (15–43)29.4 ± 8.2 (21–51)
HbA1c (%)9.1 ± 1.2 (8.1–11.8)9.2 ± 1.3 (7.2–11.2)
Insulin dosage (units)43.8 ± 15.7 (25–94)58.2 ± 27.5 (20–118)
M:F12:146:95:5
  • Data are means ± SD (ranges). All patients had type 1 diabetes as defined by the National Diabetes Group. The HbA1c values were not significantly different between the patient groups.