Table 1 Characteristics of the study group on admission to the ICU
From: Anemia and blood transfusion in a surgical intensive care unit
| Â | All patients |
|---|---|
N | 5,925 |
Age, years, mean ± SD | 62.2 ± 15.2 |
Gender, male (%) | 3,748 (63.3) |
Referring facility | Â |
   Operating/recovery room | 4,482 (75.7 ) |
   Emergency room | 393 (6.6) |
   Other hospital | 30 (0.5) |
   Other ICU | 455 (7.6) |
   Others | 565 (9.6) |
Comorbidities (%) | Â |
   Diabetes mellitus | 1,316 (22.2) |
   Cancer | 1,234 (20.8) |
   Chronic renal failure | 700 (11.9) |
   COPD | 143 (2.4) |
   Cirrhosis | 133 (2.2) |
   Heart failure (NYHA III to IV) | 75 (1.3) |
   Hematologic cancer | 8 (0.1) |
Mechanical ventilation (%) | 3,248 (54.8) |
Severity scores, mean ± SD |  |
   SAPS II score | 36.7 ± 18.2 |
   SOFA score | 5.9 ± 3.9 |
Surgery within 24 hours | Â |
   Cardiovascular surgery | 2,210 (37.3) |
   General surgery | 1,130 (19.1) |
   Neurosurgery | 831 (14.0) |
   Trauma | 342 (5.8 ) |
   Thoracic surgery | 260 (4.4) |
   Others | 1,152 (19.4) |
Unplanned admissions (%) | 1,495 (25.2) |
Hemoglobin concentration, g/dl, mean ± SD | 9.9 ± 2.3 |
ICU mortality rate (%) | 361 (6.1) |
Hospital mortality rate (%) | 601 (10.1) |
ICU LOS, days, median (IQR) | 1 (1-4) |
Hospital LOS, days, median (IQR) | 12 (9-19) |