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Table 2 Mixed linear model analysis for Mean TOx, OptTOx, OptMAP, upper and lower MAP bounds and MAP range for maintained CVR in three time periods: 0–12 h, 12–24 h and 24–48 h

From: Association of deranged cerebrovascular reactivity with brain injury following cardiac arrest: a post-hoc analysis of the COMACARE trial

 

Group

0–12 h

12–24 h

24–48 h

p-value

Mean TOx

Poor outcome

0.06 (− 0.07 to 0.14)

− 0.03 (− 0.11 to 0.16)

0.01 (− 0.09 to 0.14)

0.004

 

Good outcome

− 0.04 (− 0.12 to 0.04)

− 0.05 (− 0.21 to 0.05)

− 0.02 (− 0.10 to 0.06)

 

OptTOx

Poor outcome

− 0.21 (− 0.35 to − 0.02)

− 0.17 (− 0.36 to − 0.02)

− 0.19 (− 0.36 to − 0.05)

0.077

 

Good outcome

− 0.24 (− 0.38 to − 0.14)

− 0.27 (− 0.48 to − 0.10)

− 0.23 (− 0.37 to − 0.11)

 

OptMAP

Poor outcome

79.7 (73.5–87.8)

76.4 (71.1–81.7)

81.7 (72.4–88.3)

0.079

 

Good outcome

80.9 (71.4–86.7)

81.7 (73.0–87.4)

82.7 (75.0–87.4)

 

Upper MAP bound

Poor outcome

90.5 (81.1–98.4)

89.5 (80.6–92.9)

92.8 (83.4–100.3)

0.001

 

Good outcome

94.7 (85.4–102.3)

93.4 (83.2–100.4)

94.4 (89.0–101.0)

 

Lower MAP bound

Poor outcome

69.6 (64.2–74.4)

66.2 (63.0–73.1)

68.5 (63.4–74.4)

0.569

 

Good outcome

68.0 (63.3–75.9)

69.7 (62.1–74.7)

68.4 (63.6–73.5)

 

MAP range

Poor outcome

19 (15–30)

24 (17–26)

23 (17–29)

 < 0.001

 

Good outcome

28 (23–36)

25 (20–36)

33 (25–39)

 
  1. p values are comparing good versus poor neurologic outcome
  2. Values are expressed as medians (interquartile ranges)
  3. OptTOx optimal tissue oxygenation index
  4. OptMAP optimal mean arterial pressure