Table 1 Basic characteristics
Characteristic | Number | % |
|---|---|---|
Age | ||
 < 65 | 20 | 50.0 |
 ≥ 65 | 20 | 50.0 |
Sex | ||
Male | 28 | 70.0 |
Female | 12 | 30.0 |
KPS | ||
 < 80 | 20 | 50.0 |
 ≥ 80 | 20 | 50.0 |
Primary tumour location | ||
Oral cavity | 21 | 52.5 |
Larynx | 8 | 20.0 |
Maxillary sinusnasal cavity | 3 | 7.5 |
Hypopharynx | 6 | 15.0 |
Oropharynx | 2 | 5.0 |
Disease status | ||
Distant metastasis | 16 | 40 |
Local recurrence | 22 | 55 |
Recurrence and metastasis | 2 | 5 |
No. of metastasis | ||
1–5 | 10 | 55.6 |
 > 5 | 8 | 44.4 |
Sites of metastasis | ||
Liver | 6 | 22.2 |
Lung | 13 | 48.1 |
Brain | 2 | 7.4 |
Mediastinal LN | 3 | 11.1 |
Bone | 3 | 11.1 |
PD-L1 status | ||
Negative | 20 | 50.0 |
Positive | 20 | 50.0 |