Table 1. Patient characteristics at baselinea

n or Mean% or SD
a EPO, erythropoietin; BMI, body mass index; nPNA, nPCR, normalized protein catabolic rate.
b To convert from g/dl to g/L, multiply by 10.
c To convert from g/dl to mmol/L, multiply by 0.25; to mEq/L, multiply by 0.5.
d To convert from g/dl to mmol/L, multiply by 0.323.
Age (yr; n [%])
    <458912.0
    45 to 6018525.0
    60 to 7020327.4
    >7026335.5
Gender (n [%])
    male42557.4
    female31542.6
Primary kidney disease (n [%])
    Diabetes11115.0
    Glomerulonephritis7610.3
    Renal vascular cause15721.2
    All other39653.5
Davies’ comorbidity score (n [%])
    no29640.0
    intermediate36148.8
    high8311.2
SGA score (n [%])
    ≤410814.6
    513818.7
    628238.1
    721228.7
No. of patients treated with EPO (n [%])66990.4
Albumin (g/dlb; mean [SD])3.660.48
Hemoglobin (g/dlb)10.71.4
BMI (kg/m2)24.64.5
nPCR (g/kg per d)1.000.23
Calcium (mg/dl)c9.361.0
Phosphorus (mg/dl)d5.851.76
Systolic BP (mmHg, before/after session)154/14221/21
Diastolic BP (mmHg, before/after session)82/7811/11