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Table 3 StcO2 and BIS have an inverse association with ICP and CAP Index and a direct association with CPP

From: Severe brain injury ICU outcomes are associated with Cranial-Arterial Pressure Index and noninvasive Bispectral Index and transcranial oxygen saturation: a prospective, preliminary study

 

StcO2

BIS

 

≥70 (percent)

<70 (percent)

OR

95 percent CI

p value

≥60 (percent)

<60 (percent)

OR

95 percent CI

p value

ICP >20

9.8

20.6

0.42

0.32–0.55

<0.0001

6.5

19.0

0.30

0.21–0.43

<0.0001

CAP Index >0.30

7.9

17.7

0.40

0.30–0.54

<0.0001

5.3

16.1

0.29

0.19–0.44

<0.0001

CPP ≥ 60

97.5

90.3

4.2

2.6–6.8

<0.0001

97.8

92.2

3.7

2.0–7.0

<0.0001

  1. BIS, bispectral index; CAP Index, Cranial-Arterial Pressure Index (ICP/(MAP - ICP)); CI, confidence intervals; CPP, cerebral perfusion pressure; ICP, intracranial pressure; OR, odds ratio; StcO2, transcranial oxygen saturation.