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Univariate regression analysis and significance level of each predictor on lower EPC
| Univariate regression analysis | p-value |
|---|---|
| Sex (effect of male) | 0.9182 |
| Smoker | 0.4776 |
| Age | 0.4337 |
| Anchor localization (superior) | 0.0252 |
| Heavy lifting | 0.1245 |
| Amount of disc material removed | 0.6441 |
| Size of defect | 0.2446 |
| Preoperative disc height | 0.8333 |
| Postoperative Pfirrmann score | 0.5502 |
| Postoperative Modic score | 0.8817 |
