Table 2.
Results of Pearson or Spearman correlation analyses for hidden blood loss
| Parameters | Sig (2-tailed) | P |
|---|---|---|
| Age | 0.102 | 0.058 |
| Gender | 0.137 | 0.000 |
| BMI | -0.006 | 0.873 |
| ASA | 0.021 | 0.567 |
| Preoperative Cobb angle | 0.082 | 0.024 |
| Preoperative Hct | 0.145 | 0.000 |
| Preoperative APTT | 0.049 | 0.176 |
| Preoperative PT | -0.005 | 0.901 |
| Operation time | 0.112 | 0.002 |
| Bone mineral density | -0.066 | 0.068 |
| Segment number | 0.074 | 0.040 |
| Pedicle screw number | 0.053 | 0.146 |
| Osteotomy | 0.027 | 0.449 |
| Autologous blood transfusion | 0.009 | 0.803 |
| Allogeneic blood transfusion | 0.194 | 0.000 |
| Postoperative drainage | -0.017 | 0.631 |
| Tranexamic acid | -0.159 | 0.000 |