Table 1.
Demographic variables and laboratory results in patients receiving more than 10 units of red blood cells within 24 h in 2005–2006 and 2002–2003
| 2005–2006 (n = 442) | 2002–2003 (n = 390) | All | P-valuea | |
|---|---|---|---|---|
| Age in years | 58·3 (18·5) | 58·4 (18·4) | 58·3 (18·5) | 0·97 |
| Male gender | 315 (71·3%) | 268 (68·7%) | 583 (70·1%) | 0·42 |
| Type of admission | ||||
| Abdominal-vascular surgery | 231(52·3%) | 176 (45·1%) | 407 (48·9%) | 0·1357 |
| Cardiothoracic surgery | 83 (18·8%) | 87 (22·3%) | 170 (20·4%) | |
| Trauma surgery | 60 (13·6%) | 61 (15·6%) | 121 (14·5%) | |
| Orthopaedic surgery | 38 (8·6%) | 27 (6·9%) | 65 (7·8%) | |
| Miscellaneous | 22 (5·0%) | 24 (6·2%) | 46 (5·5%) | |
| Burn surgery | 8 (1·8%) | 15 (3·9%) | 23 (3·4%) | |
| Pre-bleeding laboratory analyses | ||||
| Plasma albumin (g/l) | 30·7 (8·5) | 31·1 (6·8) | 31·0 (6·2) | 0·77 |
| Plasma bilirubin (µmol/l) | 14·6 (15·8) | 15·3 (12·4) | 14·9 (11·1) | 0·91 |
| Creatinine (mmol/l) | 0·27 (0·8) | 0·25 (0·98) | 0·26 (0·87) | 0·81 |
| APTT (second) | 34·4 (8·0) | 33·5 (10·7) | 34·0 (9·3) | 0·48 |
| International normalized ratio | 1·3 (0·5) | 1·4 (0·7) | 1·4 (0·6) | 0·11 |
| Platelet count (109/l) | 210·6 (122·0) | 208·2 (102·8) | 209·1 (113·0) | 0·83 |
| Pre-bleeding sample time, from blood sampling to first transfusion (h) | 13·6 (13·1) | 11·8 (12·6) | 12·7 (12·9) | 0·1437 |
| Post-bleeding sample time, from first transfusion to blood sample (h) | 32·6 (12·2) | 32·1 (18·8) | 33·6 (11·8) | 0·4653 |
Data are mean (standard deviation), if not marked as n%.
Two-sample t-test and χ2-test.
a
Difference between 2005–2006 and 2002–2003.