Table 1.
Three methods to estimated 24-hour urinary sodium excretion.
Table 2.
Characteristic of participants (n = 116).
Table 3.
Validity of three methods of estimation versus measured 24-h urinary sodium excretion in a sample of Chinese adults (n = 116).
Fig 1.
Scatter plots measured 24-h urine sodium excretion (USE) vs. Kawasaki (A), INTERSALT (B), and Tanaka (C) method estimated 24-h USE (mg/d). The hollow circles were scatter points of measured and estimated values. The real line was the linear regression line of the scatters in the plots. The dash lines were the 95% CI lines of predicted mean.
Fig 2.
Bland-Altman plots of measured 24-h urine sodium excretion (USE) vs. Kawasaki (A), INTERSALT (B), and Tanaka (C) method estimated 24-h USE (mg/d). The difference between measured and estimated was all estimated values minus the measured values. The mid-dashed line was the mean difference or bias between measured and estimated values. The dash-point line represented the 95% limits of agreement of the mean difference ± 1.96 standard deviation.