Table 2 BP parameters, HR, pulse pressure, stroke volume and TAC of 81 hypertensive subjects and 80 normal subjects.

From: Influence of beat-to-beat blood pressure variability on vascular elasticity in hypertensive population

variable

Experimental population

Control population

P

(Mean ± SD, N = 81)

(Mean ± SD, N = 80)

SBP (mmHg)

143.6 ± 20.8

121.4 ± 11.4

<0.001**

SBP_SD (mmHg)

7.46 ± 2.51

5.76 ± 1.58

0.003**

SBP_ARV (mmHg)

2.53 ± 1.03

1.87 ± 0.60

0.001**

SBP_RSD (mmHg)

6.87 ± 2.30

5.36 ± 1.44

0.008**

SBP_VIM (Unit)

7.45 ± 2.44

5.76 ± 1.57

0.006**

DBP (mmHg)

76.5 ± 9.9

67.9 ± 9.1

0.358

DBP_SD (mmHg)

4.28 ± 1.47

3.61 ± 1.16

0.296

DBP_ARV (mmHg)

1.37 ± 0.69

1.23 ± 0.47

0.096

DBP_RSD (mmHg)

4.06 ± 1.42

3.45 ± 1.10

0.436

DBP_VIM (Unit)

4.29 ± 1.47

3.62 ± 1.17

0.467

PP (mmHg)

66.0 ± 17.10

53.5 ± 7.8

<0.001**

StrV (mL)

76.7 ± 18.7

84.6 ± 17.6

0.041*

HR (beats/min)

70.8 ± 11.5

67.3 ± 10.4

0.395

HR_SD (beats/min)

70.6 ± 11.7

67.3 ± 10.4

0.184

TAC (mL/mmHg)

1.14 ± 0.38

1.59 ± 0.31

0.037*

  1. SBP, systolic blood pressure; DBP, diastolic blood pressure; SD, standard deviation; ARV, average real variability; RSD, residual standard deviation; VIM, variation independent of mean; HR, heart rate; PP, pulse pressure; StrV, stroke volume; TAC, total arterial compliance. *p < 0.05; **P < 0.01.