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Table 5 Logistic regression analyses for 1-month outcomes for OHCAs witnessed by EMS providers (n = 23,127)

From: Collaborative effects of bystander-initiated cardiopulmonary resuscitation and prehospital advanced cardiac life support by physicians on survival of out-of-hospital cardiac arrest: a nationwide population-based observational study

  1-month survival Good performance at 1 month Vegetative status or de facto brain death at 1 month
  OR 95% CI P OR 95% CI P OR 95% CI P
Age (10-year increase) 0.89 0.87 to 0.91 < 0.001 0.80 0.78 to 0.83 < 0.001 0.97 0.93 to 1.01 0.119
Sex          
   Male Ref.    Ref.    Ref.   
   Female 1.02 0.94 to 1.12 0.617 0.90 0.79 to 1.02 0.097 1.18 1.02 to 1.37 0.028
Causes of arrest          
   Noncardiac origin Ref.    Ref.    Ref.   
   Cardiac origin with initial non-VF 1.58 1.43 to 1.73 < 0.001 3.00 2.58 to 3.49 < 0.001 0.93 0.80 to 1.09 0.360
   Cardiac origin with initial VF 7.58 6.68 to 8.59 < 0.001 17.82 15.07 to 21.07 < 0.001 1.36 1.04 to 1.77 0.024
Advanced cardiac life support          
   By ELSTs Ref.    Ref.    Ref.   
   By physicians 1.27 1.05 to 1.53 0.013 1.47 1.16 to 1.87 0.002 0.92 0.64 to 1.32 0.646
  1. CI, confidence interval; ELST, emergency life-saving technician; EMS, emergency medical service; OHCA, out-of-hospital cardiac arrest; OR, odds ratio; Ref., reference; VF, ventricular fibrillation.