Table 1. Subject Characteristics.

Results are presented as Mean (SD) or Median [range] and/or individual values.

	High GFR (n=3)	Low GFR (n=3)	Normal (n=2)
Male	3	3	2
Black	1	0	0
Hispanic	2	3	0
Age (yr)	58.7 (9.2)	50.7 (2.1)	57, 60
Body mass index (kg/m2)	33.1 (12.6)	33.1 (10.0)	20.4, 24
Duration of diabetes (yr)	9.0 (7.8)	20.7 (6.7)	NA
Urinary albumin/creatinine ratio (mg/g)	1714 [1038-2311]	4838 [3917-5544]
Serum creatinine (mg/dL)	1.6 (0.9)	3.2 (1.4)	1.0, 1.04
Blood urea nitrogen (mg/dL)	35.7 (19.1)	65.0 (13.9)	11, 14
Creatinine clearance (mL/min)	97.7 (79.0)	29.7 (19.2)
GFR (mL/min)	95.1, 139.2, 201.9 145.4 (53.7)	11.1, 17.6, 32.3 20.3 (10.9)
Proteinuria (g/day)	3.3 (1.2)	6.5 (1.8)