Factors associated with outcome in univariate analyses
| Factors | Brought to hospital on admission with pulse | Alive at 1 month |
| Age (years) (328, 239)* | OR (95% CI) | OR (95% CI) |
| >71 (median) | 1.006 (1.002 to 1.010) | 0.98 (0.97 to 0.98) |
| ≤71 | ||
| Gender (381, 311) | ||
| Female | 1.62 (1.44 to 1.84) | 1.14 (0.96 to 1.34) |
| Male | ||
| Place (209, 141) | ||
| At home | 0.61 (0.55 to 0.68) | 0.35 (0.30 to 0.41) |
| Outside home | ||
| Bystander CPR (297, 231) | ||
| Yes | 1.46 (1.32 to 1.62) | 2.53 (2.18 to 2.95) |
| No | ||
| Delay from cardiac arrest to defibrillation (1282, 1227) | ||
| >Median | 0.32 (0.28 to 0.36) | 0.24 (0.20 to 0.29) |
| ≤Median | ||
↵* Number of patients with missing information.
CPR, cardiopulmonary resuscitation.