Primary site | N | HPV16 positive RT-PCR | P16 overexpression | ||||
---|---|---|---|---|---|---|---|
abs. | % | P | abs. | % | P | ||
Tonsil | 33 | 19 | 57.6 | 0.112 | 15/32* | 46.9 | 0.492 |
Base of the tongue | 28 | 17 | 60.7 | 0.062 | 15/27* | 55.6 | 0.094 |
Oropharynx (Tonsil and base of the tongue) | 61 | 36 | 50.0 | < 0.001 | 30/59* | 50.8 | 0.008 |
Anterior two-thirds of the tongue | 9 | 1 | 11.1 | 0.035 | 2 | 22.2 | 0.291 |
Floor of the mouth | 2 | 0 | 0.0 | 0.498 | 0 | 0.0 | 0.507 |
Hypopharynx | 1 | 0 | 0.0 | 1.000 | 0 | 0.0 | 1.000 |
Soft palate | 2 | 0 | 0.0 | 0.498 | 0 | 0.0 | 0.507 |
Supraglottic | 3 | 0 | 0.0 | 0.246 | 1 | 33.3 | 1.000 |
Unknown (CUP) | 3 | 0 | 0.0 | 0.246 | 0 | 0.0 | 0.261 |