Table 1

Clinical characteristics of included DCCT/EDIC Study participants with and without kidney disease

Kidney disease status*
Controls (N=43)Cases (N=43)
Clinical characteristics
Demographic data
 Age (years)50 (8)51 (9)
 Duration of diabetes (years)30 (5)30 (6)
 Female gender20 (47)17 (40)
 DCCT intensive therapy21 (49)14 (33)
 DCCT primary cohort22 (51)22 (51)
Physical examination data
 Body mass index (kg/m2)29.3 (5.2)30.4 (6.0)
 Systolic BP (mmHg)122 (14)137 (21)
 Diastolic BP (mmHg)75 (9)76 (13)
Laboratory data
 eGFR (mL/min/1.73 m2)103 (9)39 (14)
 Albumin excretion rate (mg/day)10 (7)1978 (2914)
 Current HbA1c (%)8.0 (1.0)8.6 (1.7)
 DCCT/EDIC time-weighted HbA1c (%)7.9 (0.6)9.2 (1.1)
 EDIC time-weighted HbA1c (%)7.9 (0.7)9.1 (1.3)
 LDL cholesterol (mg/dL)95 (29)105 (39)
 HDL cholesterol (mg/dL)60 (19)52 (18)
 Triglycerides (mg/dL)77 (35)131 (73)
  • Cell contents are mean (SD) or N (%).

  • *Cases were defined by incident persistent eGFR <60 mL/min/1.73 m2 with urinary AER >300 mg/24 hour; control subjects were randomly selected from the pool of DCCT/EDIC Study participants who maintained persistent eGFR >90 mL/min/1.73 m2 and AER <30 mg/24 hour through the study visit on which the corresponding case participant developed incident eGFR <60 mL/min/1.73 m2 and were additionally matched to cases on duration of diabetes and DCCT cohort.

  • AER, albumin excretion rate; BP, blood pressure; DCCT/EDIC, Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications; eGFR, estimated glomerular filtration rate; HDL, high-density lipoprotein; HbA1c, hemoglobin A1c; LDL. low-density lipoprotein.