Patients from the RT + CHT group were more likely to be younger at diagnosis (p < 1 × 10−5), present at advanced stage (p < 1 × 10−5), and have oropharyngeal squamous cell carcinoma (OPSCC) (p < 1 × 10−5). This evidence concerns the gene SLC5A7 and oropharynx squamous cell carcinoma.