TABLE 4.
A multiple logistic regression analysis for the primary outcome according to the initial rhythm on the scene.
| Variables | Shockable rhythm on the scene (n = 804) | Non‐shockable rhythm on the scene (n = 353) | ||
|---|---|---|---|---|
| Adjusted OR (95% CI) | p value | Adjusted OR (95% CI) | p value | |
| Age, y | 0.97 (0.95–0.98) | <0.001 | 0.97 (0.94–0.99) | 0.044 |
| Male | 0.52 (0.31–0.88) | 0.016 | 1.13 (0.47–2.68) | 0.777 |
| Witnessed arrest | 1.69 (0.96–3.00) | 0.068 | 0.32 (0.12–0.83) | 0.020 |
| Bystander CPR | 1.68 (1.12–2.52) | 0.011 | 0.91 (0.40–2.10) | 0.841 |
| AED use | 1.13 (0.70–1.81) | 0.602 | 0.36 (0.10–1.25) | 0.109 |
| Any ALS care | 0.42 (0.28–0.63) | <0.001 | 0.79 (0.34–1.70) | 0.559 |
Abbreviations: AED, automated external defibrillator; ALS, advanced life support; CI, confidence interval; CPR, cardiopulmonary resuscitation; OR, odds ratio.