Bystander response
| Exercise SCA | Presumed cardiac OHCA* | ||||
|---|---|---|---|---|---|
| N | Per cent | N | Per cent | ||
| Bystander witnessed | 75 | 75 | 3068 | 46 | χ2=32.86, df=1, p<0.001 |
| Bystander CPR | 62 | 62 | 2592 | 39 | χ2=21.69, df=1, p<0.001 |
| Bystander defibrillation | 4 | 4 | 39 | 1 | χ2=13.32, df=1, p<0.001 |
*Cases where resuscitation was attempted and a cardiac cause presumed.
OHCA, out-of-hospital cardiac arrest; SCA, sudden cardiac arrest.