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Table 5 Correlation of creatinine estimates obtained with various equations

From: Sodium intake in Germany estimated from sodium excretion measured in spot urine samples

 

Kawasaki [33]

Tanaka [32]

Toft [31]

Johner [36]

 

Kawasaki [33]

-

0.533

0.984

0.268

women

(-0.091–0.810)

(0.970–0.990)

(0.101–0.403)

Tanaka [32]

0.813

-

0.570

0.083

(0.623–0.891)

(-0.085–0.827)

(0.034–0.130)

Toft [31]

0.937

0.870

-

0.284

(0.932–0.942)

(0.588–0.940)

(0.165–0.386)

Johner [36]

0.236

0.124

0.208

-

 

(0.082–0.363)

(0.086–0.161)

(0.035–0.353)

 

men

  
  1. ICC matrix (with 95 % CI) of estimated daily creatinine excretion calculated using various methods stratified by sex