Table 1.
Clinicopathological characteristics of patients
| Criteria | n | % |
|---|---|---|
| Tumor site | ||
| Oral cavity | 31 | 43.7 |
| Oropharynx | 9 | 12.7 |
| Larynx | 13 | 18.3 |
| Hypopharynx | 11 | 15.5 |
| Maxilla | 7 | 9.8 |
| Age (mean ± SD) (years) | 64.3 ± 8.7 | |
| Sex | ||
| Male | 61 | 85.9 |
| Female | 10 | 14.1 |
| Tumor status | ||
| T1 | 6 | 8.4 |
| T2 | 23 | 32.4 |
| T3 | 21 | 29.6 |
| T4 | 21 | 29.6 |
| Node status | ||
| N0 | 32 | 45.1 |
| N1 | 10 | 14.1 |
| N2 | 29 | 40.8 |
| TNM stage | ||
| I | 3 | 4.2 |
| II | 12 | 16.9 |
| III | 18 | 25.4 |
| IV | 38 | 53.5 |
| Recurrence | ||
| None | 27 | 38 |
| Locoregional and/or distant | 44 | 62 |
| Differentiation † | 20 | 29.4 |
| Well | 20 | 29.4 |
| Moderate | 33 | 48.5 |
| Poor | 15 | 22.1 |
†
Three cases with unknown differentiation status were not included.