Table 1 Characteristics of 19,669 patients admitted to the intensive care unit
Variables | Post-Operative | Non-Operative |
|---|---|---|
N | 11,215 | 8,454 |
BMI (Kg/m2) (SD) | 28.4 (7.9) | 27.5 (7.2) |
Mean age (SD) | 64.2 (15.9) | 60.9 (19.1) |
Male sex (%) | 59.2 | 54.1 |
White ethnicity (%) | 96.1 | 94.6 |
Median APACHE III (IQR) | 39.0 (29.0–51.0) | 48 (32.0–67.0) |
Median predicted mortality % (IQR) | 2.5 (1.2–5.7) | 7.5 (2.3–22.7) |
Admission source (%) | ||
RR/OR | 99.9 | 0.0 |
ER/Direct | 0.0 | 49.0 |
Same hospital transfer | 0.1 | 45.2 |
Other hospital transfer | 0.0 | 5.8 |
ICU type (%) | ||
Surgical | 78.8 | 26.9 |
Medical | 0.4 | 53.4 |
Multi-specialty | 20.8 | 19.7 |
Treatment intensity (%) | ||
Active | 51.6 | 56.0 |
High-risk monitor | 1.4 | 19.1 |
Low-risk monitor | 46.9 | 24.9 |
Admission diagnosis group (%) | ||
Cardiovascular | 31.4 | 24.7 |
Gastrointestinal | 24.3 | 20.1 |
Respiratory | 14.8 | 28.9 |
Musculoskeletal | 11.3 | 1.2 |
Genitourinary | 8.1 | 3.1 |
Trauma | 4.1 | 6.9 |
Neurology | 1.2 | 9.8 |
Metabolic/endocrine | 1.3 | 3.0 |
Transplant | 3.3 | 0.1 |
Hematology | 0.2 | 2.2 |