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| MMP-8 after 6 mo | Laser treatment | Surgical treatment |
|---|---|---|
| N | 50 (%) | 50 (%) |
| Negative | 48 (96) | 40 (80) |
| Positive | 2 (4) | 10 (20) |
| Total | 50 (100) | 50 (100) |
Abbreviations: MMP-8, matrix metalloproteinase-8; SD, standard deviation; SEM, standard error of the mean.
Note: Chi-square test, p -value chi-square = 6.06, p = 0.0138.
