Table 1.

	sEpoR Low	sEpoR High	p-value
N	661	36
Age (Years)	67±13	68±15	0.76
Female (%)	51	36	0.09
Race (%)			0.30
White	63	72
Black	33	28
Other	4	0
aBMI (kg/m2)	26±6	27±7	0.66
Etiology of renal failure (%)			0.03
Diabetes Mellitus	47	47
Hypertension	37	22
Glomerulonephritis	8	8
Polycystic Kidney Disease	2	8
Other	6	15
Vascular Access			0.76
Fistula	22	20
Graft	13	17
Catheter	65	63
Systolic blood pressure (mmHg)	144±22	140±18	0.81
Diastolic blood pressure (mmHg)	72±13	71±10	0.31
bPTH (bio-intact; pg/ml)	297±302	278±268	0.81
Calcium (mg/dl)	8.5±0.7	8.7±0.6	0.31
Phosphorus (mg/dl)	4.5±1.5	4.3±1.8	0.46
Ferritin (ng/ml)	297±512	318±273	0.25
Iron saturation (%)	20±10	18±8	0.25
White blood cell count (cells/µl)	8±3	8±3	0.69
Platelets (cells/dl)	239±94	211±81	0.81

Results are expressed as mean ± standard deviation.

^aBMI–body mass index.

^bPTH–parathyroid hormone.