Table 1. Patient and Facility Characteristics.

Patient Characteristics
Number of patients	244
Age, mean (SD), y	62 (15)
Female (%)	45
Race/Ethnicity (%)
Black	30
White	46
Hispanic	14
Other	9
Weight, mean (SD), kg	81 (23)
Time receiving dialysis, mean (SD), y	3 (3)
Serum phosphorus, mean (SD), mg/dL	5.2 (1.6)
Serum phosphorus > 5.5 mg/dL (%)	34
Facility Characteristics
Number of facilities	244
Large dialysis organization (%)	73
For profit (%)	84
Number of patients, mean (SD)	67 (32)
Number of stations, mean (SD)	21 (8)