Table 4. Partial correlation between 24-hour urine sodium and Na/K and parameters of pulse wave analysis.

24-hour urine Na	Correlation coefficient*	P-value***
PPA *	−0.089	0.045
CPP **	0.098	0.027
AP **	0.130	0.004
AI **	0.105	0.019

24 hour urine Na/K	Correlation coefficient*	P-value
PPA *	−0.099	0.027
CPP **	0.110	0.014
AP **	0.144	0.001
AI **	0.121	0.007

PPA, pulse pressure amplification; CPP, central pulse pressure; AP, augmented pressure; AI, augmentation index.

^*Corrected for age, augmentation index, body mass index(BMI), gender, mean peripheral BP, heart rate, smoking, fasting blood glucose(FBG) and total cholesterol

^**Corrected for age, body mass index(BMI), gender, mean peripheral BP, heart rate, smoking, fasting blood glucose(FBG) and total cholesterol

^***P-values < 0.05 are considered significant.