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Table 2 Logistic regression analysis of survival to discharge

From: Can we predict patient outcome before extracorporeal membrane oxygenation for refractory cardiac arrest?

  Univariate analysis (crude) Multivariate analysis (adjusted)
Predictor Coefficient OR(95% CI) P-value Coefficient OR(95% CI) P-value Score
Age
  < 55 0.957 2.604 (1.175–5.771) 0.018     
  > =55   1.000      
Location of cardiac arrest
 OHCAa or IHCAb   1.000    1.000   
 Emergency department 1.248 3.482(1.263–9.600) 0.016 1.312 3.715(1.190–11.596) 0.024 5
CPRc to ECMOd (min)
  < 48 1.836 6.271(2.648–14.851) < 0.001 1.743 5.714(2.221–14.698) < 0.001 7
  > =48   1.000    1.000   
Initial cardiac rhythm
 Asystole or PEAe   1.000    1.000   
 Pulseless VTf or Vfg 1.584 4.875(2.075–11.453) < 0.001 1.712 5.543(2.057–14.937) 0.001 7
Lactate (IU/ml)
  < =9.7 1.269 3.556(1.451–8.711) 0.006     
  > 9.7   1.000      
Initial pH
  < 7.31   1.000      
  > =7.31 1.171 3.225(1.394–7.464) 0.006     
Eitology of cardiac arrest
 Acute myocardial infarction   1.000      
 Cardiomyopathy −0.506 0.603(0.169–2.158 0.437     
 Myocarditis 1.404 4.071(1.009–16.426) 0.049     
 Pulmonary embolism −1.774 0.170(0.020–1.435) 0.103     
 Others −0.793 0.452(0.112–1.825) 0.265     
  1. Hosmer-Lemeshow goodness-of-fit test indicated no evidence of lack of fit in the selected model (p = 0.185).OR = Odds ratio
  2. aOHCA Out-of-hospital cardiac arrest, bIHCA In-hospital cardiac arrest, cCPR Cardiopulmonary resuscitation, dECMO Extracorporeal membrane oxygenation, ePEA Pulselss electrical activity, fVT Ventricular tachycardia, gVf Ventricular fibrillation