Baseline characteristics and circumstances of sudden cardiac arrest in patients who were resuscitated by ambulance personnel
| Survivors (n = 47) | Non-survivors (n = 241) | p value | |
|---|---|---|---|
| Men | 37 (79%) | 187 (78%) | |
| Women | 10 (21%) | 54 (22%) | NS |
| Mean age (years) | 58.1 (11.3) | 60.7 (9.8) | NS |
| Cardiac history | 24 (51%) | 139 (58%) | NS |
| Event at home | 24 (51%) | 162 (67%) | 0.05 |
| Witnessed SCA | 45 (96%) | 212 (88%) | NS |
| Resuscitation by bystander | 28 (60%) | 102 (42%) | < 0.05 |
| First documented rhythm VT or VF | 40 (85%) | 123 (51%) | < 0.001 |
| Resuscitated within 4 minutes of the moment of collapse | 34 (72%) | 105 (44%) | < 0.001 |
| Ambulance delay time less than 8 minutes | 41 (87%) | 167 (69%) | < 0.05 |
VT, ventricular tachycardia; VF, ventricular fibrillation.