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The Capital Region of Denmark - a part of Copenhagen University Hospital

Impact of p16-overexpression on overall and progression-free survival outcomes in oral cavity squamous cell carcinomas: A semi-national, population-based study

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OBJECTIVES: Human papillomavirus infection and p16-overexpression is a principal cause and favorable prognostic factor for oropharyngeal squamous cell carcinomas but the value as prognostic marker in oral cavity squamous cell carcinomas (OSCC) is undetermined.

MATERIALS AND METHODS: All patients diagnosed with OSCC in Eastern Denmark in the period 2008-2014 were enrolled. Survival estimates were evaluated as overall survival (OS) and progression free survival (PFS) by Kaplan-Meier survival curves and multivariate Cox-regression analyses.

RESULTS: We included 575 patients from which 13% (n = 69) had p16-positive tumors. The 5-year OS were 55% and 62% for the p16-negative and p16-positive patients, respectively, and the 5-year PFS were 48% and 50%. In a multivariate survival analysis, p16-positivity showed no significant influence on OS (HR: 1.06 [0.67-1.70], p = 0.79) and PFS (HR: 1.11 [0.76-1.63], p = 0.58).

CONCLUSION: In this population-based cohort of non-selected OSCC patients, we found no difference in survival outcomes when stratified on p16-overexpression status.

Original languageEnglish
JournalOral Oncology
Pages (from-to)105031
Publication statusPublished - Dec 2020

ID: 61232384