Residual urinary output in high body mass index individuals on chronic hemodialysis: A disregarded life vest?

Table 1 Patient characteristics n (%)

Variable	Group A	Group B	Group C
N	22	15	20
Male gender	10 (45)	9 (60)	14 (70)
Diabetics	4 (18)	3 (20)	10 (50)
Hypertensives	15 (68)	12 (80)	17 (85)
Median age (yr)	65	71	63
Range	36-83	26-88	33-79
Median time on HD (mo)	12	26	15.5
Range	4-101	9-92	4-55
BMI (Mean ± SD) (kg/m2)	21.3 ± 2.4b	27.6 ± 1.4b	33.9 ± 4.2b
Median MIS	5.5	4	3
Range	1-21	2-8	0-13
Causes of ESRD
Glomerulonephritis	8	7	11
Diabetes	2	2	3
Nephroangiosclerosis	7	3	4
Obstructive uropathy	1	0	1
Interstitial nephritis	1	1	1
Polycystic kidney disease	3	2	0
Median C-Reactive protein (mg/dL)	1.2	1.1	1.1
Range	0.50-12	0.20-8	0-4.5
Median urinary output (mL/d)	690	660	840
Range	140-1780	160-1800	140-2840
Median initial urinary output (mL/d)	790	800	890
Range	170-1860	180-1970	940-2900
Median albumin (g/dL)	3.70a	3.8	3.85a
Range	2.2-4.9	3.2-4.4	3.4-4.9

^bP = 0.001,

^aP = 0.02. MIS: Malnutrition Inflammatory Score; ESRD: End-stage renal disease; HD: Hemodialysis.