Table 4: Predictive factors of outcome.
| Negative Predictive Factors | Positive Predictive Factors |
| Mean time from cardiac arrest to defibrillation of 12/14 minutes | Short time (< 10 minutes) from cardiac arrest to CPR and defibrillation |
| Non shockable rhythm | Bystander as first rescuer |
| Cardiac arrest at home | Public place (street, square) |
| Delayed call of emergency medical service | Early call of emergency medical service |
| Road traffic | Good road conditions |
| Male sex | Female sex |
| Elderly age and concomitant diseases | Young people without concomitant diseases |
| > 4 shocks with AED | < 4 shocks with AED |