Table 2.

Bivariate (unadjusted) correlation coefficients between quarterly averaged serum K concentration and some relevant variables at baseline in 74,219 MHD patients

VariablePearson Correlation r
Dialysate K−0.37
Age−0.05
Kt/V−0.03
BMIa−0.02
Protein intake (nPNA)0.33
Serum albumin0.18
    creatinine0.27
    phosphorous0.29
    bicarbonate−0.23
    calcium0.03
    TIBC0.04
    ferritin0.05
Blood hemoglobin0.03
    WBC counta0.02
    % lymphocyte−0.03
  • a P >0.05; all other P < 0.001.