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Table 2 Intraclass correlation coefficients of each spot equation and 24-h urine

From: Estimating mean population salt intake in Fiji and Samoa using spot urine samples

Method

Fiji

Samoa

ICC

95% CI

ICC

95% CI

Kawasaki

0.33

0.24 to 0.41

0.50

0.44 to 0.55

Tanaka

0.22

0.12 to 0.31

0.42

0.36 to 0.48

Mage

0.13

0.04 to 0.23

0.29

0.22 to 0.35

INTERSALT without K

0.17

0.08 to 0.26

0.36

0.30 to 0.42

INTERSALT with K

0.13

0.00 to 0.24

0.36

0.30 to 0.42

Toft

0.30

0.21 to 0.39

0.39

0.32 to 0.45

  1. ICC Intraclass correlation coefficient, CI Confidence interval, K Potassium