Table 1.

Characteristics of patients in the three groups

								Primary renal disease
GROUP (N)	Median diuresis (mL/ day)	Median age (years)	Gender	> 65 years	Average eGFR (mL/min/1,73m2)	DN	GN	CTIN	VN	CD	U
A (76)	298.68	61.5 (21-78)	47 M 29 F	37	10.306	33	19	5	12	1	6
B (84)	872.62	619 (29-78)	55 M 29 F	43	10.251	16	4	12	43	7	2
C (56)	1759.82	61.7 (34-78)	30 M 26 F	30	10.273	9	2	20	12	13	0
Legends: M = male; F = female; DN = diabetic nephropathy; GN = glomerular diseases (non-diabetic); CTIN = chronic tubulointerstitial nephropathies; VN = vascular nephropathies; CD = cystic diseases; U = unknown