Table 1 .
Characteristics of the subjects
| Variable | Total N=233 |
|---|---|
| Gender: | |
| Female | 56 (24.0%) |
| Male | 177 (76.0%) |
| Age (years): | |
| <50 | 31 (13.3%) |
| 50–60 | 82 (35.2%) |
| 60–70 | 92 (39.5%) |
| >70 | 18 (12.0%) |
| Degree of spread to regional | |
| N1 | 33 (14.2%) |
| N2 | 100 (42.9%) |
| N3 | 100 (42.9%) |
| Panendoscopy revealed primary tumor | n=105 |
| Yes | 36 (34.3%) |
| No | 69 (65.7%) |
| PET – revealed primary tumor | n=70 |
| Yes | 31 (44.3%) |
| No | 39 (55.7%) |
| Cervical lymph node groups: | |
| I | 9 (3.9%) |
| II | 205 (88.0%) |
| III | 144 (61.8%) |
| IV | 59 (25.3%) |
| V | 31 (13.3%) |
| VI | 2 (0.9%) |
| Tonsillectomy | 37 (15.9%) |
| Pathologic type: | |
| 1 - Squamous cell carcinoma | 202 (86.7%) |
| 2 – Adenocarcinoma | 8 (3.4%) |
| 3 – Melanoma | 8 (3.4%) |
| 4 – Lymphoma | 1 (0.5%) |
| 5 – Other | 14 (6.0%) |
| Surgery | 109 (46.8%) |
| Radiotherapy | 165 (71.4%) |
| Chemotherapy | 135 (57.9%) |
| ECOG performance status: | |
| 0 | 103 (44.2%) |
| 1 | 96 (41.2%) |
| 2 | 26 (11.2%) |
| 3 | 7 (3.0%) |
| 4 | 1 (0.4%) |
| Treatment: | |
| Radical | 135 (57.9%) |
| Palliative | 98 (42.1%) |