| Group 1 | Group 2 | ||||||
---|---|---|---|---|---|---|---|---|
OR | 95% CI | p | OR | 95% CI | p | |||
Age (years, one additional year) | 0.994 | 0.984 | 1.005 | 0.284 | 0.924 | 0.88 | 0.966 | 0.001 |
EMS response time (one additional minute) | 0.86 | 0.811 | 0.909 | < 0.001 | 0.833 | 0.742 | 0.928 | 0.001 |
Cardiac arrest location (public) | 1.843 | 1.399 | 2.423 | < 0.001 | 4.29 | 2.45 | 7.343 | < 0.001 |
Bystander CPR | 1.329 | 1.007 | 1.75 | 0.045 | 0.882 | 0.518 | 1.467 | 0.634 |
Bystander keep airway | 1.158 | 0.746 | 1.766 | 0.507 | 1.534 | 0.732 | 3.114 | 0.251 |
Attended by EMT-Paramedic | 1.666 | 1.277 | 2.168 | < 0.001 | 2.702 | 1.704 | 4.279 | < 0.001 |
Shockable rhythm | 1.162 | 0.76 | 1.747 | 0.482 | 0.878 | 0.182 | 2.995 | 0.85 |
Prehospital defibrillation | 2.908 | 2.198 | 3.843 | < 0.001 | 1.513 | 0.765 | 2.814 | 0.225 |
Intubation by EMT | 0.773 | 0.296 | 1.763 | 0.558 | 1.996 | 0.619 | 5.401 | 0.282 |