Table 4 Correlation of sodium estimates obtained with various equations

Brown [35]

-

0.170

0.294

0.469

0.164

women

(-0.081–0.410)

(-0.085–0.571)

(0.084–0.679)

(0.081–0.241)

Kawasaki [33]

0.326

-

0.761

0.275

0.784

(-0.076–0.598)

(-0.045–0.922)

(-0.090–0.557)

(0.598–0.869)

Tanaka [32]

0.717

0.542

-

0.519

0.623

(0.700–0.734)

(-0.081– 0.828)

(-0.018–0.760)

(0.603–0.643)

Toft [31]

0.464

0.816

0.706

-

0.275

(-0.083–0.743)

(0.414–0.917)

(-0.007–0.922)

(0.203–0.341)

Johner [28]

0.267

0.750

0.523

0.572

-

(0.220–0.311)

(0.567–0.841)

(0.456–0.581)

(0.545–0.597)