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Table 3 Blood transfusion data between 2007 and 2011

From: Improvements in blood transfusion management: cross-sectional data analysis from nine hospitals in Zhejiang, China

  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