Table 1.

Frequency distribution of clinical variables

Variables	Control	Case	Total	P-value
	Mean±SD	Mean±SD	Mean±SD
Age	59.31±15.30	62.62±13.38	61.78±13.86	0.351
Sodium	141.36±2.77	142.6±3.01	142.29±2.98	0.783
Potassium	4.5±0.63	4.56±0.75	4.54±0.72	0.622
SBP	123.68±10.65	127.50±10.26	126.53±10.42	0.311
DBP	76.84±9.45	77.32±10.48	77.20±10.17	0.636