Skip to main content

Table 4 Variables associated with restoration of spontaneous circulation and hospital admission

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)

2.11

1.14–2.87

0.016

Arrival time

1.38a

1.07–2.55

0.008

Witnessed arrest

1.27

0.76–1.94

0.54

Bystander CPR

2.43

1.21–4.98

0.014

Initial petCO2 b

20.35

5.43–35.63

<0.001

Average petCO2 b

6.36

2.30–8.34

<0.001

Final petCO2 b

2.85

1.43–3.92

0.003

Initial MAPb

1.25

1.13–1.86

0.02

Vasopressin

1.63

1.24–2.14

0.012

Gender (female)

2.85

1.36–5.48

0.002

Period 2c

1.28

1.15–1.92

0.02

  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; VF, ventricular fibrillation; VT, ventricular tachycardia without pulse.