Table 1 Characteristics of the cohort
Variables | Mean (SD) |
|---|---|
Age (years) | 53.5 (19.5) |
Male/female (%) | 6,871/4,236 (61.9/38.1) |
Admission source (%) | |
Operating room | 4,885 (44.0) |
Recovery room | 638 (5.7) |
Emergency department | 2,976 (26.8) |
Ward | 1,481 (13.3) |
Another hospital | 1,127 (10.1) |
Primary organ failure (%) | |
Cardiovascular | 3,693 (33.2) |
Neurological | 3,893 (35.0) |
Respiratory | 2,682 (24.1) |
Gastrointestinal | 401 (3.6) |
Renal | 167 (1.5) |
Metabolic | 217 (2.0) |
Haematological | 49 (0.4) |
ICU stay (days) | 5.1 (7.8) |
Hospital stay (days) | 21.1 (29.3) |
Admission APACHE II score | 12.7 (7.3) |
Worst 24-hour APACHE II score | 15.4 (7.9) |
Admission APACHE predicted mortality (%) | 15.5 (19.1) |
Worst 24-hour APACHE predicted mortality (%) | 19.3 (22.1) |
Actual ICU mortality (%) | 12.0 |
Actual hospital mortality (%) | 16.3 |