Table 3: HPV Status by Disease Site.
| HPV status | Disease Site | ||||
| larynx | oral cavity | oropharynx | hypopharynx | Total | |
| Negative | 39 | 191 | 20 | 8 | 258 |
| Positive (% among tested) | 6 (13%) | 15 (7%) | 121 (86%) | 1 (11%) | 143 |
| invalid/missing | 36 | 67 | 17 | 13 | 133 |
| Total | 81 | 273 | 158 | 22 | 534 |