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| Name | OR | CI | P |
|---|---|---|---|
| History of injury to the lumbar spine | 0.312 | 0.092 - 1.056 | 0.061 |
| BMI | 1.536 | 1.280 - 1.842 | 0.001 |
BMI: body mass index; OR: odd ratio; CI: confidence interval; P: value for the difference between groups; pVAS: postoperative visual analog scale; Inj: history of injury to the lumbar spine.
