Variable

p-value 1

Transformation function $f\left(x\right)$

p-value 2

Hemoglobin

0.090

Hematocrit

0.007

$x^{-2}$

1.00

ePVS

0.69

Creatinine

0.21

eGFR Cockroft-Gault

<0.0001

$\ln \left(x\right)$

0.40

eGFR MDRD

<0.0001

$x^{-0.5}$

0.79

eGFR CKD-EPI

0.005

$\ln \left(x\right)$

0.90

Sodium

0.056

Potassium

<0.0001

${\left(x-4.6\right)}^2$

0.47

Heart rate

<0.0001

${\left(x-60\right)}^2$

0.91

Systolic BP

<0.0001

${\left(x-140\right)}^2$

0.34

Diastolic BP

<0.0001

${\left(x-84\right)}^2$

0.49

Mean BP

<0.0001

${\left(x-102\right)}^2$

0.66

Weight

0.090

BMI

0.060

Age

0.64