|  | - | + | p value |
---|---|---|---|---|
Age | Mean ± SD | 57.68 ± 11.30 | 57.50 ± 11.13 | 0.4948 |
Sex | Male | 48 | 19 | Â |
 | Female | 32 | 18 | 0.9837 |
T staging | 1 | 2 | 7 | Â |
 | 2 | 7 | 19 |  |
 | 3 | 63 | 9 |  |
 | 4 | 8 | 2 | 0.0542 |
Degree of differentiation | High | 31 | 14 | Â |
 | Medium | 27 | 11 |  |
 | Low | 22 | 12 | 0.5434 |
Lymph node metastasis | Yes | 68 | 6 | Â |
 | None | 12 | 31 | 0.011 |
Primary lesion location | Lingual margin | 31 | 15 | Â |
 | Dorsum | 5 | 7 |  |
 | Gingiva | 11 | 2 |  |
 | Mouth floor | 9 | 7 |  |
 | Cheek | 16 | 5 |  |
 | Palate | 3 | 0 |  |
 | Lip | 2 | 0 |  |
 | Oropharynx | 3 | 1 | 0.9373 |