From: Anemia and blood transfusion in a surgical intensive care unit
 | Mortality rates (%) | Length of stay, days median (IQR) | ||
---|---|---|---|---|
 | ICU | Hospital | ICU LOS | Hospital LOS |
Admission hemoglobin concentration | †| †| †| †|
   < 7 g/dl (n = 1109) | 120 (10.8) | 171 (15.4) | 2 (1-5) | 12 (9-21) |
   7-9 g/dl (n = 1748) | 114 (6.5)* | 196 (11.2)** | 2 (1-4) | 13 (10-19) |
   9-11 g/dl (n = 2021) | 85 (4.2)* | 158 (6.8)* | 1(1-3)* | 12 (9-19) |
   >11 g/dl (n = 1047) | 42 (4.0)* | 76 (7.3)* | 1(1-3)* | 11 (7-16)* |
Lowest hemoglobin concentration | †| †| †| †|
   < 7 g/dl (n = 1483) | 189 (12.7) | 259 (17.5) | 3(1-9) | 14 (10-25) |
   7-9 g/dl (n = 1928) | 104 (5.4)* | 200 (10.4)* | 2 (1-5)* | 13 (10-20)* |
   9-11 g/dl (n = 1693) | 45 (2.7)* | 99 (5.8)* | 1 (1-2)* | 11 (8-16)* |
   >11 g/dl (n = 821) | 23 (2.8)* | 43 (5.2)* | 1 (1-1)* | 10 (7-14)* |