TABLE 2.
A multiple logistic regression analysis for the primary and secondary outcomes.
| Variables | Favorable neurological outcomes | Survival | ||
|---|---|---|---|---|
| Adjusted OR (95% CI) | p value | Adjusted OR (95% CI) | p value | |
| Age, y | 0.97 (0.96–0.98) | <0.001 | 0.98 (0.97–0.99) | <0.001 |
| Male | 0.70 (0.46–1.07) | 0.107 | 0.66 (0.47–0.93) | 0.018 |
| Witnessed arrest | 0.98 (0.63–1.52) | 0.936 | 1.22 (0.87–1.73) | 0.239 |
| Bystander CPR | 1.49 (1.05–2.11) | 0.015 | 1.07 (0.82–1.40) | 0.596 |
| Initial rhythm on the scene | ||||
| VF/pVT | Reference | Reference | ||
| Pulseless electrical activity | 0.41 (0.25–0.68) | <0.001 | 0.46 (0.32–0.67) | <0.001 |
| Asystole | 0.40 (0.19–0.83) | 0.015 | 0.46 (0.27–0.78) | 0.005 |
| AED use | 0.91 (0.62–1.36) | 0.675 | 1.03 (0.56–1.41) | 0.819 |
| Any ALS care | 0.47 (0.34–0.66) | <0.001 | 0.73 (0.56–0.94) | 0.019 |
Abbreviations: AED, automated external defibrillator; ALS; advanced life support; CI, confidence interval; CPR, cardiopulmonary resuscitation; OR, odds ratio; pVT, pulseless electrical activity; VF, ventricular fibrillation.