Table 3 Comparison between measured 24-hour (24UCr) and predicted 24 h urinary creatinine excretion (Pr24UCr)

From: Prediction of 24-hour sodium excretion from spot urine samples in South African adults: a comparison of four equations

 

Median (IQR)

Median difference

P value of differencea

Spearman correlation coefficient

Spearman correlation p value

Measured 24UCr predicted 24UCr using equations

1094.3 (784.6–1679.9)

    

Tanaka

1257.6 (1042.4–1496.7)

− 92.8 (− 495.6; 577.0)

0.977

0.1512

0.0015

Kawasaki

1160.9 (1006.9–1639.6)

− 163.7 (− 583.9; 365.2)

<0.001

0.1418

0.0029

Mage

1093.3 (839.3–1422.9)

59.9 (− 344.1; 649.3)

<0.001

0.1841

0.0001

  1. aWilcoxon Signed Rank Test used to compare median values
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