Correlation between the expression of MMP-9 and clinical indices in OSCC.
| Item | Cases | Positive expression of MMP-9 (%) | χ2 | P |
|---|---|---|---|---|
| Sex | 5.347 | <0.05 | ||
| Male | 24 | 20 (83.33) | ||
| Female | 18 | 9 (50.00) | ||
| Age | 0.001 | <0.05 | ||
| <60 years | 26 | 18 (69.23) | ||
| ≥60 years | 16 | 11 (68.75) | ||
| Lymphatic metastasis | 6.439 | <0.05 | ||
| No | 27 | 15 (55.56) | ||
| Yes | 15 | 14 (93.33) | ||
| Clinical stages | 4.617 | <0.05 | ||
| Stage I and II | 13 | 6 (46.15) | ||
| Stage III and IV | 29 | 23 (79.31) |