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Table 2 Two separate multivariate models constructed using backward multivariate logistic regression

From: Is venous congestion associated with reduced cerebral oxygenation and worse neurological outcome after cardiac arrest?

Model

Step 1

Final step

 

OR (p value)

OR

95 % CI

P

Model 1: cardiac arrest variables

    

Age

0.99 (0.84)

   

 Bystander CPR, yes/no

3.75 (0.27)

   

 Shockable rhythm, yes/no

8.93 (0.02)

11.36

1.8–71.5

0.01

 Time to ROSC

0.98 (0.63)

   

 Percentage time CVP >5 mmHg

0.94 (0.03)

0.94

0.89–0.99

0.02

Model 2: hemodynamic variables

 Percentage time MAP <65 mmHg

0.96 (0.03)

0.96

0.93–0.99

0.04

 Ejection fraction, %

0.99 (0.56)

   

 Percentage time CVP >5 mmHg

0.95 (0.03)

0.95

0.90–0.99

0.03

  1. In the first model, arrest variables were included (age, bystander cardiopulmonary resuscitation (CPR) <10 minutes, shockable rhythm, time to return of spontaneous circulation (ROSC), and percentage time central venous pressure (CVP) >5 mmHg) and in the second model, hemodynamic variables were included (mean, mean arterial pressure (MAP)/24 h, ejection fraction, mean CO/24 h, percentage time CVP >5 mmHg). Odds ratios (OR) for survival with a good neurological outcome at 180 days (cerebral performance category 1–2) are shown
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Critical Care

ISSN: 1364-8535