Research Article
Risk Factors of Total Blood Loss and Hidden Blood Loss in Patients with Adolescent Idiopathic Scoliosis: A Retrospective Study
Table 4
Multiple linear regression analysis of risk factors of HBL.
| Parameters | Unstandardized | Standardized beta | | | 95% CI | B | SE |
| Operative time (min) | 0.241 | 0.186 | 0.143 | 1.296 | 0.198 | -0.128 | 0.609 | PLTpost (109/L) | 0.245 | 0.169 | 0.092 | 1.448 | 0.150 | -0.090 | 0.581 | The number of surgical fixation segments | 36.577 | 12.246 | 0.474 | 2.987 | 0.004 | 12.299 | 60.856 | The number of pedicle screws | 10.938 | 6.415 | 0.243 | 1.705 | 0.091 | -1.780 | 23.655 | Type of scoliosis | 8.579 | 6.843 | 0.081 | 1.254 | 0.213 | -4.989 | 22.147 | Correction angle (°) | -0.721 | 1.022 | -0.047 | -0.706 | 0.482 | -2.747 | 1.304 | TBV (mL) | 0.018 | 0.017 | 0.067 | 1.061 | 0.291 | -0.016 | 0.053 |
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indicates a risk factor of HBL ( ). PLT post: postoperative platelets. |