Table 2 Baseline characteristics of the study population
Patient characteristic | All | Medical | Acute surgery | Planned surgery |
|---|---|---|---|---|
n | 30,712 | 17,122 | 9722 | 3868 |
Age (years) | ||||
Mean (SD) | 63.2 (18.2) | 63.7 (18) | 61.4 (19.3) | 65.2 (15.4) |
Q1 | 52.4 | 53.4 | 48 | 57.2 |
Median | 66 | 66.5 | 64.7 | 67.5 |
Q3 | 77.3 | 77.7 | 77 | 76.5 |
SAPS II | ||||
Mean (SD) | 36.8 (18.2) | 38.6 (18.8) | 36.9 (17.2) | 29 (16) |
Q1 | 24 | 25 | 24.2 | 18 |
Median | 34 | 36 | 35 | 25 |
Q3 | 47 | 49 | 47 | 37 |
Survival status (proportion) | ||||
Died ICU | 0.13 | 0.15 | 0.12 | 0.05 |
Died ward | 0.07 | 0.07 | 0.06 | 0.05 |
Survived hospital | 0.81 | 0.78 | 0.82 | 0.9 |
LOS ICU (days) | ||||
Mean (SD) | 4.3 (6.8) | 4 (6.4) | 5 (7.5) | 3.8 (6.6) |
Q1 | 1.1 | 1 | 1.3 | 1.1 |
Median | 2 | 1.9 | 2.3 | 1.9 |
Q3 | 4.3 | 4 | 5.2 | 3.4 |