Summary statistics (before multiple imputation) for significant predictors in the NTCA model. Percentages are of the total n of patients with NTCA
| Survived to hospital admission | Did not survive to hospital admission | Survived to hospital discharge | Survived to admission but not discharge | |
| Median age, years (IQR) | 71 (58–81) | 75 (62–84) | 63 (50–73) | 74 (62–83) |
| Male, n (%) | 1551 (17.6) | 3939 (44.7) | 411 (4.7) | 663 (7.5) |
| Female, n (%) | 868 (9.9) | 2422 (27.5) | 119 (1.4) | 418 (4.7) |
| Witnessed arrest, n (%) | 1752 (19.9) | 3198 (36.3) | 440 (5.0) | 763 (8.7) |
| Unwitnessed arrest, n (%) | 666 (7.6) | 3165 (35.9) | 90 (1.0) | 319 (3.6) |
| Median response time, min (IQR) | 5.0 (3.0–8.0) | 6.0 (3.9–9.0) | 4.4 (1.0–7.0) | 6.0 (3.1–8.0) |
| Shockable rhythm, n (%) | 911 (10.3) | 775 (8.8) | 373 (4.2) | 282 (3.2) |
| Non-shockable rhythm, n (%) | 1319 (15.0) | 5362 (60.9) | 98 (1.1) | 737 (8.4) |
| Successfully intubated, n (%) | 916 (10.4) | 2228 (25.3) | 121 (1.4) | 489 (5.6) |
| Not intubated, n (%) | 1326 (15.0) | 3683 (41.8) | 369 (4.2) | 558 (6.3) |
| Epinephrine, n (%) | 1689 (19.2) | 5462 (62.0) | 187 (2.1) | 895 (10.2) |
| No epinephrine, n (%) | 735 (8.3) | 915 (10.4) | 343 (3.9) | 188 (2.1) |
NTCA, non-traumatic cardiac arrest.