Table 1.
Patients’ characteristics (n = 203)
| Characteristic | Number of patients (%) |
|---|---|
| Gender | |
| Male | 152 (74.9) |
| Female | 51 (25.1) |
| Age (yr) | |
| >60 | 111 (54.7) |
| ≤60 | 92 (45.3) |
| Smoking | |
| Yes | 154 (77.4) |
| No | 45 (22.6) |
| Unknown | 4 (2.0) |
| Alcohol | |
| Yes | 142 (70.0) |
| No | 60 (29.6) |
| Unknown | 1 (0.5) |
| Tumor site | |
| Oral cavity | 137 (67.5) |
| Oropharynx | 3 (1.5) |
| Hypopharynx | 4 (2.0) |
| Larynx | 59 (29.1) |
| Primary tumor | |
| T1-T2 | 47 (24.1) |
| T3-T4 | 132 (67.7) |
| Unknown | 16 (8.2) |
| Lymph node metastasis | |
| Negative | 61 (30.0) |
| Positive | 113 (55.7) |
| Unknown | 29 (14.3) |
| Stage | |
| I-II | 20 (9.8) |
| III-IV | 176 (86.7) |
| Unknown | 7 (3.4) |
| Treatment type | |
| Radiotherapy only | 13 (6.4) |
| Operation + Radiotherapy | 165 (81.3) |
| Operation + Chemoradiotherapy | 24 (11.8) |
| Chemoradiotherapy | 1 (0.5) |