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Table 1 Univariate analysis between allogeneic blood transfusion group and non-transfusion group

From: Risk factors for blood transfusion in adolescent patients with scoliosis undergoing scoliosis surgery: a study of 722 cases in a single center

  Non-Transfusion group Transfusion group Transfusion rate P
Age (year) 14.4 ± 1.8 14.0 ± 2.0   0.013
BMI (kg/m2)) 19.0 ± 3.4 18.5 ± 3.7   0.205
Gender, male/total (%) 128/485 (26.4%) 85/237 (35.9%)   0.009
Diagnosis, n(%) 485 (100%) 237 (100%)   0.000
Idiopathic, n(%) 308 (63.5%) 64 (27%) 17.2%  
Congenital, n(%) 116 (23.9%) 108 (45.5%) 48.2%  
Neurofibromatosis, n(%) 11 (2.3%) 17 (7.2%) 60.7%  
Syndromic, n(%) 21 (4.3%) 35 (14.8%) 62.5%  
Neuromuscular, n(%) 29 (6.0%) 13 (5.5%) 31.0%  
Osteotomy pattern, n(%) 485 (100%) 237 (100%)   0.000
Fusion without osteotomy, n(%) 443 (91.3%) 152 (64.1%) 25.5%  
Ponte osteotomy, n(%) 12 (2.5%) 18 (7.6%) 60%  
Hemivertebrae resection, n(%) 19 (3.9%) 39 (16.5%) 67.2%  
PSO, n(%) 9 (1.9%) 15 (6.3%) 62.5%  
VCR, n(%) 2 (0.4%) 13 (5.5%) 86.7%  
Cobb angle of major curve-preoperative, degree 53.5 ± 10.6 57.5 ± 11.5   0.108
Cobb angle of major curve-postoperative, degree 18.5 ± 9.0 16.5 ± 8.5   0.309
Major curve correction rate,% 62 ± 7.6 59.5 ± 6.4   0.205
Fusion segments 9.8 ± 2.7 11.6 ± 3.4   0.000
Preoperative HGB, g/L 136.2 ± 11.7 135.3 ± 14.0   0.356
Intraoperative Blood loss, mL 414.5 ± 235.6 839.4 ± 573.7   0.000
Intraoperative cell salvage, mL 200.9 ± 166.8 397.6 ± 323.7   0.000
HGB POD1, g/L 108.2 ± 15.0 111.1 ± 16.0   0.018
HGB POD3, g/L 102.7 ± 14.1 105.4 ± 14.9   0.041
HGB POD5, g/L 103.2 ± 13.9 105.8 ± 15.2   0.273