Logistic regression analysis of predictors of the outcome survival to hospital discharge in patients ≥70 years (n=2281)*
| Univariate analysis | Multivariable analysis | |||
| Predictors | OR (95% CI) | (p Value) | AOR (95% CI) | (p Value) |
| Age (years) | 0.93 (0.89–97)* | (0.001) | 0.95 (0.90–0.99)* | (0.03) |
| Female | 0.46 (0.26–0.83)* | (0.010) | 1.04 (0.53–2.03) | (0.91) |
| Bystander-witnessed OHCA | 7.90 (3.2–19.7)* | (<0.001) | 3.98 (1.38–11.50)* | (0.01) |
| Bystander CPR OHCA | 3.70 (1.8–7.2)* | (<0.001) | 1.26 (0.58–2.72) | (0.56) |
| Shockable initial rhythm | 30.20 (14.8–61.5)* | (<0.001) | 17.92 (8.19–39.20)* | (<0.001) |
| OHCA at subjects own home | 0.09 (0.05–0.16)* | (<0.001) | 0.14 (0.07–0.28)* | (<0.001) |
| EMS response time (minutes) | 0.96 (0.93–0.99)* | (0.02) | 0.97 (0.94–1.01) | (0.08) |
* OR, AOR and 95% CI in the older population (≥70 years).
CPR, cardiopulmonary resuscitation; EMS, emergency medical services; OHCA, out-of-hospital cardiac arrest.