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Table 3 Results of the multivariate linear regression analysis for hidden blood loss

From: Hidden blood loss in adolescent idiopathic scoliosis patients undergoing posterior spinal fusion surgery: a retrospective study of 765 cases at a single centre

  Unstandardized Standardized   
coefficient β SE β t P Value
Constant -66.169 255.887   -0.259 0.796
Gender 95.745 49.444 0.075 1.936 0.053
Preoperative Cobb angle 0.792 1.502 0.019 0.528 0.598
Segment number -15.017 7.815 -0.078 -1.922 0.055
Operation time -0.393 0.308 -0.050 -1.274 0.203
Tranexamic acid -126.394 41.730 -0.103 -3.029 0.003
Preoperative Hct 18.205 6.114 0.116 2.978 0.003
Allogeneic blood transfusion 0.256 0.027 0.388 9.307 0.000