Table 1.
Patients characteristics
| Characteristics | N (%) |
|---|---|
| Total patients | 31 |
| Males | 19 (61) |
| Females | 12 (39) |
| Age (years) | |
| Mean | 63.35 |
| Range | 49–86 |
| Tobacco exposure | |
| Never smoker | 4 (13) |
| < 10 p/y | 4 (13) |
| 10–20 p/y | 8 (26) |
| > 20 p/y | 15 (48) |
| Tumor primary site and subsite | |
| Larynx | 4 (13) |
| Sovraglottic | 1 (25) |
| Glottic | 3 (75) |
| Nasopharynx | 3 (10) |
| Oropharynx (O) | 22 (71) |
| Base tongue | 8 (36) |
| Soft palate | 2 (9) |
| Tonsil | 12 (55) |
| Hypopharynx (H) | 2 (6) |
| Pyriform sinus | 2 (100) |
| Histology | |
| Squamous cell carcinoma (SCC) | 30 (97) |
| Non-keratinizing indifferentiated | 1 (3) |
| HPV status | |
| Positive | 13 (42) |
| Negative | 10 (32) |
| Not assessed | 8 (26) |
| T stage | |
| T1 | 8 (26) |
| T2 | 10 (32) |
| T3 | 5 (16) |
| T4 | 3 (10) |
| T4a | 5 (16) |
| T4b | 0 (0) |
| N stage | |
| N0 | 8 (26) |
| N1 | 12 (39) |
| N2 | 1 (3) |
| N2a | 2 (6) |
| N2b | 1 (3) |
| N2c | 2 (6) |
| N3 | 2 (6) |
| N3a | 1 (3) |
| N3b | 2 (6) |
| Stage group | |
| I | 5 (16) |
| II | 6 (19) |
| III | 8 (26) |
| IVa | 9 (29) |
| IVb | 3 (10) |