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Comparison of ISI scores in the two groups (mean ± SD)
| ISI score | Control group (n = 48) | MB group (n = 50) | p-value |
|---|---|---|---|
| Preoperative | 21.31 ± 4.27 | 22.65 ± 4.06 | 0.494 |
| 1 week postoperative | 15.40 ± 2.53a | 13.10 ± 2.13a | 0.040 |
| 1 month postoperative | 16.00 ± 2.63a | 11.33 ± 2.06a | < 0.01 |
| 3 months postoperative | 16.13 ± 3.48a | 9.93 ± 1.97a | < 0.01 |
| 6 months postoperative | 15.82 ± 3.62a | 9.26 ± 1.93a | < 0.01 |
ap < 0.05 versus the preoperative value within the same group
