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Correlation between changes in pain and disability scale and changes in global PSQI score within the whole cohort.
| All | Conservative group | Surgical group | ||||
|---|---|---|---|---|---|---|
| Correlation coefficient | p-value | Correlation coefficient | p-value | Correlation coefficient | p-value | |
| Changes in visual analogue scale | ||||||
| Back pain | 0.360 | < 0.001 | 0.171 | 0.038 | 0.343 | 0.011 |
| Leg pain | 0.555 | < 0.001 | 0.297 | < 0.001 | 0.681 | < 0.001 |
| Changes in Oswestry disability index score | 0.175 | 0.013 | 0.223 | 0.007 | 0.207 | 0.133 |
