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Number of HPV16+ and p16+ tumors according to patient age group and localization.
| Tumor location |
Age <45 years |
Age ≥45 years |
||||
|---|---|---|---|---|---|---|
| n = 39 | HPV16 | p16 | n = 38 | HPV16 | p16 | |
| Oropharynx | ||||||
| Tonsil | 7 | 1 | 1 | 7 | 3 | 2 |
| Base of tongue | 1 | 1 | 1 | 1 | 0 | 0 |
| Regional lymph node metastasis of unknown primary | 1 | 1 | 1 | 0 | 0 | 0 |
| Non-oropharynx | ||||||
| Mobile tongue | 17 | 0 | 2 | 14 | 1 | 1 |
| Floor of mouth | 6 | 0 | 1 | 8 | 1 | 1 |
| Retromolar trigone | 3 | 0 | 0 | 2 | 0 | 0 |
| Larynx | 5 | 1 | 0 | 6 | 0 | 0 |
HPV, human papillomavirus.
