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Characteristics of the study cohort
| Characteristic | Total number [n (%)] |
|---|---|
| Age at the time of surgery (years) | |
| Mean | 61.82 |
| Median | 63 |
| Range | 40–85 |
| Gender | |
| Male | 60 (81.08) |
| Female | 14 (18.92) |
| Tumor stage (TNM classification) | |
| T1 | 7 (9.46) |
| T2 | 11 (14.86) |
| T3 | 25 (33.78) |
| T4 | 31 (41.89) |
| N0 | 26 (35.13) |
| N1 | 20 (27.03) |
| N2 | 22 (29.73) |
| N3 | 6 (8.11) |
| Histologic grade | |
| G1 | 12 (16.22) |
| G2 | 49 (66.22) |
| G3 | 13 (16.58) |
| Anatomical site | |
| Larynx | 35 (47.30) |
| Oral cavity | 39 (52.70) |
