Table 3 Blood transfusion data between 2007 and 2011
2007 | 2011 | P value | |
|---|---|---|---|
Patient receiving surgery (N) | 111,655 | 158,766 | |
Patient receiving blood transfusion during hospital care (N; %) | 6093; 5.4% | 9646; 6.1% | < 0.001 |
Patient receiving perioperative allogeneic RBC transfusion (N; %) | 6000; 5.4% | 7468; 4.7% | < 0.001 |
Intra-operative | |||
Intra-operative blood loss (ml, mean ± SD) | 873 ± 1000 | 722 ± 812 | < 0.001 |
Intra-operative blood transfusion (N; %) | 4560; 74.8% | 4812; 49.9% | < 0.001 |
Intra-operative blood transfusion (Volume in ml, mean ± SD) | 702 ± 503 | 671 ± 472 | < 0.001 |
Pre-transfusion haemoglobin test (N; %) | 1688; 37.0% | 3250; 67.5% | < 0.001 |
Transfusion haemoglobin (g/dl, mean ± SD) | 93.1 ± 26.7 | 89.1 ± 24.3 | 0.002 |
Pre-transfusion Hct (%, mean ± SD) | 28.5 ± 8.1 | 26.9 ± 7.0 | < 0.001 |
Appropriateness (N; %) | 1063; 63% | 2535; 78% | < 0.001 |
Post-operative | |||
Post-operative blood loss (ml, mean ± SD) | 500 ± 609 | 491 ± 621 | 0.46 |
Post-operative blood transfusion (N; %) | 3164; 51.9% | 4268; 44.2% | < 0.001 |
Post-operative blood transfusion (Volume in ml, mean ± SD) | 712 ± 562 | 632 ± 517 | < 0.001 |
Pre-transfusion haemoglobin test (N; %) | 1898; 60.0% | 3042; 71.3% | < 0.001 |
Transfusion haemoglobin (g/dl, mean ± SD) | 89.9 ± 22.5 | 85.4 ± 20.2 | < 0.001 |
Pre-transfusion Hct (%, mean ± SD) | 26.8 ± 6.7 | 25.5 ± 6.0 | < 0.001 |
Appropriateness (N; %) | 1340; 70.6% | 2386; 78.4% | < 0.001 |
Cell salvage or ANH | |||
Acute normovolemic hemodilution (N; %) | 3; 0.1% | 894; 9.3% | < 0.001 |
Intra-operative cell salvage (N; %) | 383; 6.3% | 2665; 27.6% | < 0.001 |
Average volume of cell salvage per patient intraoperative (ml) | 63 | 172 | |
Post-operative cell salvage (N; %) | 17; 0.3% | 41; 0.4% | < 0.001 |