Table 2 Cardiovascular parameters derived from two sequential 7 min continuous blood pressure waveforms.

From: Reliability of beat-to-beat blood pressure variability in older adults

Variable name

7 min BP waveform 1 mean ± SD

7 min BP waveform 2 mean ± SD

P

Heart rate

60.65 ± 10.58

60.19 ± 10.04

0.25

Systolic blood pressure

132.65 ± 16.90

131.91 ± 20.75

0.39

 SBP SD

5.28 ± 2.50

5.43 ± 2.30

0.34

 SBP CV

4.01 ± 1.88

4.11 ± 1.74

0.37

 SBP VIM

2.02 ± .44

2.02 ± .35

0.95

 SBP ARV

1.69 ± .99

1.77 ± 1.02

0.10

 SBPrange

33.32 ± 12.15

34.07 ± 12.23

0.42

Diastolic blood pressure

77.42 ± 10.36

77.55 ± 10.50

0.44

 DBP SD

2.93 ± 1.97

3.08 ± 2.15

0.20

 DBP CV

3.92 ± 2.93

4.14 ± 3.35

0.20

 DBP VIM

2.30 ± 1.26

2.30 ± 1.77

0.96

 DBP ARV

1.90 ± 1.39

1.99 ± 1.35

0.20

  1. SBP systolic blood pressure, SD standard deviation, CV coefficient of variation, VIM variability independent of the mean, ARV average real variability, DBP diastolic blood pressure.
  2. P-values obtained from paired t-tests.
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