Table 2.

Echocardiography, and cervical ultrasonography characteristics of subjects according to the level of blood pressure variability (n = 144)

	Blood pressure variability
	Low variability	Middle variability	High variability	P value a
n	48	48	48
Left atrium diameter (mm)	37.3 ± 5.0	36.4 ± 4.6	37.6 ± 6.2	0.541
E (m/s)	0.53 ± 0.13	0.59 ± 0.19	0.57 ± 0.20	0.162
A (m/s)	0.71 ± 0.15	0.77 ± 0.17	0.77 ± 0.19	0.153
e’ (m/s)	0.054 ± 0.019	0.053 ± 0.012	0.048 ± 0.019	0.189
E/A	0.77 ± 0.26	0.80 ± 0.29	0.76 ± 0.29	0.845
E/e’	10.66 ± 3.30	11.60 ± 3.36	13.03 ± 5.33	0.019
LVMI (mm)	139.0 ± 27.3	137.0 ± 23.6	148.1 ± 30.7	0.108
Ejection fraction (%)	58.3 ± 9.1	58.2 ± 6.8	57.5 ± 8.1	0.859
Max-IMT (mm)	1.42 ± 0.46	1.36 ± 0.37	1.65 ± 0.43	0.003

Data are means ± standard deviation or n (%). Low, middle, and high variability are defined as the lowest (<8.29 mmHg), middle (8.29–10.99 mmHg), and highest (>10.99 mmHg) tertiles of the standard deviation of systolic blood pressure, respectively.

E, early ventricular filling velocity; A, late ventricular filling velocity; e’, early diastolic mitral annular velocity; LVMI, left ventricular mass index; max-IMT, maximum intima-media thickness.

^aAnalysis of covariance.