Background characteristics of respondents, divided into men and women, and non-respondents in terms of age, cardiac arrest (CA) circumstances and in-hospital interventions
| Female respondents | Male respondents | Total respondents | Non-respondents | Missing data* | |
| Individuals (n) | 20 (21) | 74 (79) | 94 (100) | 13 (23) women 43 (77) men | |
| Age at the time of CA (years) Median (min–max) | 61 (25–87) | 64 (18–89) | 64 (18–89) | 66.5 (20–93) | |
| CA circumstances | |||||
| CA at home | 11 (55) | 23 (31) | 34 (36) | 28 (50) | |
| Witnessed CA | 20 (100) | 67 (92) | 87 (94) | 52 (95) | 1/1 |
| Initial cardiac rhythm VF/VT | 14 (74) | 59 (83) | 73 (81) | 80 (85) | 4/3 |
| CPR before arrival of EMS | 12 (60) | 38 (51) | 50 (53) | 22 (40) | 0/1 |
| Cardiac aetiology | 13 (68) | 63 (89) | 76 (84) | 50 (89) | 4/0 |
| Time from CA to arrival of EMS Median (min–max) | 6.5 (0–20) | 7 (1–61) | 7 (0–61) | 8 (0–47) | 14/2 |
| In- hospital interventions | |||||
| Hypothermia | 10 (53) | 32 (44) | 42 (46) | 26 (46) | 2/0 |
| PCI | 9 (47) | 40 (55) | 49 (53) | 24 (44) | 2/1 |
| CABG | 0 | 5 (7) | 5 (5) | 5 (9) | 2/1 |
| ICD | 5 (28) | 18 (25) | 23 (24) | 13 (25) | 4/3 |
| Beta-blockade | 15 (79) | 64 (88) | 79 (86) | 44 (83) | 2/3 |
n (%) unless otherwise stated.
*Number of patients where information is missing, among respondents/non-respondents.
CABG, coronary artery bypass grafting; CPR, cardiopulmonary resurrection; EMS, emergency medical service; ICD, implantable cardioverter defibrillator.; PCI, percutaneous coronary intervention; VF, ventricular fibrillation; VT ventricular tachycardia.