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Table 6 Variables associated with hospital discharge

From: Effects of epinephrine and vasopressin on end-tidal carbon dioxide tension and mean arterial blood pressure in out-of-hospital cardiopulmonary resuscitation: an observational study

Variables

Odds ratio

95% confidence interval

p value

Shockable rhythm (VF, VT)

1.34

1.22–1.92

0.03

Arrival time

1.46a

1.26–2.12

0.01

Witnessed arrest

6.84

2.27–20.67

< 0.001

Bystander CPR

4.45

1.98–9.48

< 0.001

Initial petCO2 b

1.61

1.28–2.64

0.008

Average petCO2 b

1.47

1.22–1.93

0.014

Final petCO2 b

2.67

1.83–3.68

< 0.001

Initial MAPb

1.02

0.91–1.32

0.54

Final MAPb

1.39

1.23–2.13

0.01

Vasopressin

1.12

0.82–1.33

0.42

Period 2c

1.32

1.19–1.95

0.03

  1. aValue proportional to each one-minute decrease in arrival time; bValues proportional to each increase by 1.33 kPa (10 mm Hg); cCPR performed in the period from November 2003 to April 2006 (period 1: January 2000 to November 2003). CPR, cardiopulmonary resuscitation; MAP, mean arterial blood pressure; petCO2, end-tidal pressure of carbon dioxide.