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| HPV Genotype in Node Metastasis | |||||||
| HPV Genotype in Primary | HPV16 | (%) | HPV33 | (%) | P Value* | ||
| Oropharynx | (N = 19) | HPV16 | 18 | (95) | 0 | (0) | <0.0001 |
| HPV33 | 0 | (0) | 1 | (5) | |||
| Occult tonsil | (N = 3) | HPV16 | 3 | (100) | 0 | (0) | |
*Symmetry of HPV genotype between the primary tumor and its corresponding node metastasis in oropharyngeal cancer patients was examined using the kappa test.
HPV: human papillomavirus.
