Table 1.
Demography and pathologic data in the 674 patients with oral squamous cell carcinoma.
| Variables | N (%) |
|---|---|
| Age | |
| <40 | 78 (11.6%) |
| ≥40 | 596 (88.4%) |
| Gender | |
| Male | 517 (76.7%) |
| Female | 157 (23.3%) |
| Smoker | 519 (77.0%) |
| Drinker | 387 (57.4%) |
| Primary site | |
| Tongue | 248 (36.8%) |
| Buccal | 177 (26.3%) |
| Gingiva | 132 (19.6%) |
| The floor of the mouth | 117 (17.4%) |
| Pathologic tumor stage | |
| T1+T2 | 385 (57.1%) |
| T3+T3 | 289 (42.9%) |
| Tumor differentiation | |
| Well | 266 (39.5%) |
| Moderate | 300 (44.5%) |
| Poor | 108 (16.0%) |
| Perineural invasion | 273 (40.5%) |
| Lymphovascular invasion | 234 (34.7%) |
| Positive margin | 35 (5.2%) |
| Pathologic neck lymph node stage | |
| N0 | 385 (57.1%) |
| N1 | 103 (15.3%) |
| N2 | 107 (15.9%) |
| N3 | 79 (11.7%) |