Table 2 Blood Pressure Variability Parameters Between Favorable and Poor Outcomes

From: Association between blood pressure variability and the short-term outcome in patients with acute spontaneous subarachnoid hemorrhage

BP parameter

Favorable outcome (n = 179)

Poor outcome (n = 80)

P valuea

SBP mean

126.3 ± 14.7

135.9 ± 16.8

<0.001

SBP maximum

147.9 ± 75.1

164.8 ± 31.4

0.019

SBP minimum

110.7 ± 13.2

111.8 ± 20.0

0.578

SBP max–min

37.3 ± 74.1

52.99 ± 32.2

0.027

SBP SD

10.9 ± 20.3

15.4 ± 8.5

0.019

SBP CV

8.2 ± 9.9

11.5 ± 6.0

0.001

SBP SV

12.5 ± 29.9

17.4 ± 10.9

0.084

DBP mean

74.6 ± 8.4

76.8 ± 9.7

0.041

DBP maximum

87.4 ± 12.8

93.1 ± 13.7

<0.001

DBP minimum

63.5 ± 7.5

63.2 ± 10.9

0.80

DBP max–min

23.9 ± 11.0

29.9 ± 12.3

<0.001

DBP SD

7.1 ± 2.9

8.7 ± 3.5

<0.001

DBP CV

9.4 ± 3.6

11.4 ± 4.5

<0.001

DBP SV

8.4 ± 4.1

9.8 ± 4.0

0.002

  1. Values are mean ± SD
  2. BP blood pressure, SBP systolic blood pressure, DBP diastolic blood pressure, max–min maximum–minimum difference, SD standard deviation, CV coefficient of variation, SV successive variation
  3. aIndependent-sample t tests
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