Table 2.
Cox regression analyses of long-term mortality.
| Unadjusted analysis | Adjusted analysis | |||||
|---|---|---|---|---|---|---|
| Survival at discharge | HR | 95% CI | P value | HR | 95% CI | P value |
| Gender | ||||||
| F | Ref | Ref | ||||
| M | 0.91 | 0.85 to 0.98 | 0.012 | 1.04 | 0.97 to 1.13 | 0.28 |
| Age | 1.01 | 1.01 to 1.02 | <0.001 | 1.01 | 1.00 to 1.01 | <0.001 |
| Etiology | ||||||
| Medical | Ref | Ref | ||||
| Trauma | 1.06 | 0.90 to 1.25 | 0.50 | 1.10 | 0.90 to 1.33 | 0.36 |
| Drowning | 0.68 | 0.28 to 1.63 | 0.38 | 0.92 | 0.34 to 2.48 | 0.87 |
| Overdose | 0.90 | 0.51 to 1.59 | 0.73 | 0.87 | 0.47 to 1.64 | 0.68 |
| Electrocution | 1.23 | 0.31 to 4.90 | 0.77 | 1.57 | 0.39 to 6.31 | 0.53 |
| Asphyxial (by external cause) | 0.81 | 0.63 to 1.03 | 0.08 | 0.70 | 0.55 to 0.91 | <0.01 |
| Location | ||||||
| Home | Ref | Ref | ||||
| Work/office | 0.72 | 0.50 to 1.04 | 0.08 | 0.87 | 0.60 to 1.27 | 0.47 |
| Sport facilities | 0.51 | 0.30 to 0.88 | 0.02 | 0.68 | 0.39 to 1.17 | 0.17 |
| Street | 0.87 | 0.76 to 1.00 | 0.05 | 0.95 | 0.81 to 1.12 | 0.56 |
| Public building | 0.59 | 0.45 to 0.76 | <0.001 | 0.73 | 0.56 to 0.96 | 0.02 |
| Long-term care | 1.13 | 0.99 to 1.27 | 0.06 | 1.05 | 0.92 to 1.19 | 0.48 |
| Shockable rhythm | ||||||
| No | Ref | Ref | ||||
| Yes | 0.45 | 0.40 to 0.51 | <0.001 | 0.49 | 0.43 to 0.55 | <0.001 |
| Witness status and CPR | ||||||
| No witnessed, no CPR | Ref | Ref | ||||
| No witnessed, yes CPR | 0.97 | 0.84 to 1.11 | 0.63 | 1.09 | 0.95 to 1.26 | 0.23 |
| Witnessed, no CPR | 0.94 | 0.85 to 1.04 | 0.25 | 0.98 | 0.88 to 1.09 | 0.69 |
| Witnessed, yes CPR | 0.76 | 0.69 to 0.85 | <0.001 | 0.97 | 0.87 to 1.09 | 0.64 |
| EMS witnessed | 0.68 | 0.60 to 0.77 | <0.001 | 0.76 | 0.67 to 0.87 | <0.001 |
| EMS arrival time | 1.02 | 1.01 to 1.02 | <0.01 | 1.00 | 0.99 to 1.01 | 0.35 |