| cBone Inv | No | 268 (38.6) | 426 (61.4) | 694 (73.4) | 0.221 |
| Yes | 108 (43.0) | 143 (57.0) | 251 (26.6) | ||
| cNeck Node | No | 62 (26.6) | 171 (73.4) | 233 (24.7) | ≤0.001 |
| Yes | 314 (44.1) | 398 (55.9) | 712 (75.3) | ||
| Oral Site | BM | 97 (35.7) | 175 (64.3) | 272 (28.7) | 0.093 |
| Tongue | 90 (45.0) | 110 (55.0) | 200 (21.3) | ||
| Alvelobuccal | 77 (43.5) | 100 (56.5) | 177 (18.7) | ||
| Alveolus | 45 (43.3) | 59 (56.7) | 104 (11.0) | ||
| CA & FOM | 28 (31.1) | 62 (68.9) | 90 (9.5) | ||
| RMT | 17 (31.5) | 37 (68.5) | 54 (5.7) | ||
| Lip | 22 (45.8) | 26 (54.2) | 48 (5.1) | ||
| Deg. of Diff. | WD | 248 (37.7) | 410 (62.3) | 658 (69.6) | 0.046 |
| Others | 128 (44.6) | 159 (55.4) | 287 (30.4) | ||
| Tumor Size | ≤2 | 91 (35.6) | 165 (64.4) | 256 (27.1) | 0.231 |
| (cm) | >2 and ≤4 | 196 (42.1) | 270 (57.9) | 466 (49.3) | |
| >4 | 89 (39.9) | 134 (60.1) | 223 (23.6) |