Factors associated with survival in univariate analysis
| OR | 95% CI | |
|---|---|---|
| OR, odds ratio; VF, ventricular fibrillation; VT, ventricular tachycardia. | ||
| Medical history | ||
| Smoking | 1.60 | 1.22 to 2.12 |
| Stroke | 0.67 | 0.45 to 0.97 |
| Diabetes | 0.54 | 0.37 to 0.77 |
| Angina pectoris | 1.28 | 1.01 to 1.62 |
| Age > median (70 years) | 0.71 | 0.56 to 0.89 |
| Asthma | 0.63 | 0.42 to 0.93 |
| Female sex | 0.67 | 0.52 to 0.87 |
| Cardiac arrest | 2.28 | 1.13 to 4.71 |
| Chronic medication before admission | ||
| Psychopharmaceuticals | 0.63 | 0.42 to 0.91 |
| Antidiabetics | 0.51 | 0.33 to 0.77 |
| Digitalis | 0.75 | 0.57 to 0.97 |
| Diuretics | 0.68 | 0.54 to 0.87 |
| β Stimulants | 0.54 | 0.31 to 0.92 |
| Lipid lowering drugs | 2.08 | 1.08 to 4.06 |
| Factors at resuscitation | ||
| Interval between cardiac arrest and arrival of ambulance > median (5 mins) | 0.45 | 0.32 to 0.61 |
| VF/VT as first recorded arrhythmia | 4.51 | 3.43 to 5.98 |
| Bystander initiated CPR | 2.26 | 1.72 to 2.97 |
| Witnessed arrest | 4.41 | 2.89 to 7.00 |
| Status on admission | ||
| Unassisted breathing | 2.70 | 2.10 to 3.45 |
| Conscious | 9.18 | 5.84 to 15.04 |
| Ongoing CPR | 0.35 | 0.24 to 0.52 |
| Palpable pulse | 3.27 | 2.23 to 4.92 |
| Sinus rhythm | 2.07 | 1.64 to 2.64 |
| Treatment on admission | ||
| Lidocaine | 1.64 | 1.27 to 2.11 |
| Atropine | 0.26 | 0.13 to 0.46 |
| Adrenaline | 0.30 | 0.19 to 0.46 |
| Defibrillation | 0.65 | 0.43 to 0.95 |