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Oropharyngeal cancer is no longer a disease of younger patients and the prognostic advantage of Human Papillomavirus is attenuated among older patients: Analysis of the National Cancer Database.


ABSTRACT: OBJECTIVES:HPV-positive oropharyngeal cancer (OPC) patients have been observed to be younger than patients with HPV-negative OPC at diagnosis. We evaluated recent trends in age at OPC diagnosis, and whether older age attenuates the survival benefit of HPV-positive tumor status. MATERIALS AND METHODS:Patients diagnosed with OPC from 2004 to 2014 represented in the National Cancer Database were included. HPV tumor status was available after 2010. Trends in age by calendar year were compared using linear regression. Overall survival was compared using Cox Proportional Hazards models. RESULTS:The mean age of OPC patients (N?=?119,611) increased significantly from 2004 to 2014 (ß?=?0.21?years of age per calendar year, 95% confidence interval [CI]?=?0.19-0.23). The increase in age from 2010 to 2014 was similar for HPV-positive (N?=?21,880; ß?=?0.63, 95%CI?=?0.53-0.72) and HPV-negative (N?=?11,504; ß?=?0.59, 95%CI?=?0.45-0.74) patients. Between 2010 and 2014, the proportion of OPCs that were HPV-positive increased significantly for all age groups, including for patients ?70?years old (from 45% to 60%, ptrend?

SUBMITTER: Rettig EM 

PROVIDER: S-EPMC6500732 | BioStudies | 2018-01-01

REPOSITORIES: biostudies

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