Table 5

Odds of survival in out-of-hospital cardiac arrest

FactorEstimated OR for survival95% CIp Value
Age (per year older)0.970.95 to 1.00.03
Rhythm (VF vs other)5.571.44 to 21.60.01
Response time (per min shorter)1.241.04 to 1.480.02
Bystander-witnessed arrest (witnessed vs not witnessed)1.640.52 to 5.190.39
Bystander CPR vs not1.320.46 to 3.800.60
  • CPR, cardiopulmonary resuscitation; VF, ventricular fibrillation.