Table 2.

Bivariate (unadjusted) correlation coefficients between iron markers and relevant variables at baseline in 58,058 MHD patientsa

VariableSerum FerritinSerum ISATSerum Iron
Serum ISAT0.24
    iron0.130.82
    albumin−0.010.090.27
    TIBC−0.28−0.180.30
    creatinine0.030.100.12
    bicarbonate0.05−0.01−0.07
    phosphorous−0.05−0.020.02
    calcium0.050.00b0.06
Blood hemoglobin−0.150.110.18
    WBC0.09−0.16−0.17
    lymphocyte (%)−0.060.200.23
Age0.06−0.07−0.10
Dialysis vintage0.06−0.07−0.10
Kt/V0.110.090.08
BMI−0.07−0.07−0.01b
IV iron dose (composite)−0.06−0.09−0.07
EPO dose−0.03−0.13−0.17
  • a ISAT, iron saturation ratio.

  • b P > 0.05; all other P < 0.001.