Variables | Odds ratios (95% CI) |
---|---|
Sex: male v female | 1.39 (0.54 to 3.62) |
Age (years) | 0.97 (0.93 to 1.00) |
Previous cardiac history (yes/no) | 0.46 (0.21 to 0.98) |
Location of the event: at home/not at home | 0.84 (0.38 to 1.87) |
Resuscitation started by a bystander or witness (yes/no) | 1.45 (0.62 to 3.36) |
Time interval between the moment of collapse and the start of resuscitation (minutes) | 0.85 (0.75 to 0.96) |
Ambulance delay time (minutes) | 0.89 (0.78 to 1.00) |
First documented rhythm: VT/VF v other rhythm | 5.72 (2.10 to 15.96) |
VT, ventricular tachycardia; VF, ventricular fibrillation.