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Anatomical subsite distribution of HNSCC primary tumours
| Site | Frequency (n) | Percent |
|---|---|---|
| Oropharynx | 122 | 38.4 % |
| Lip & Oral Cavity | 86 | 27.0 % |
| Larynx | 72 | 22.6 % |
| Hypopharynx | 15 | 4.7 % |
| Nasopharynx | 10 | 3.1 % |
| Nasal Cavity | 8 | 2.5 % |
| Paranasal Sinuses | 4 | 1.3 % |
| Salivary Glands | 1 | 0.3 % |
