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Eugenie Du, MD and Devasena , Anantharaman (2019) Long-term Survival in Head and Neck Cancer: Impact of Site, Stage, Smoking, and Human Papillomavirus Status. The Laryngoscope. ISSN 1531-4995

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Literature examining long-term survival in head and neck squamous cell carcinoma (HNSCC) with human papillomavirus (HPV) status is lacking. We compare 10-year overall survival (OS) rates for cases to population-based controls. STUDY DESIGN: Prospective cohort study. METHODS: Cases surviving 5 years postdiagnosis were identified from the Carolina Head and Neck Cancer Study. We examined 10-year survival by site, stage, p16, and treatment using Kaplan-Meier and Cox proportional hazard models. Cases were compared to age-matched, noncancer controls with stratification by p16 and smoking status. RESULTS: Ten-year OS for HNSCC is less than controls. In 581 cases, OS differed between sites with p16+ oropharynx having the most favorable prognosis (87%), followed by oral cavity (69%), larynx (67%), p16- oropharynx (56%), and hypopharynx (51%). Initial stage, but not treatment, also impacted OS. When compared to controls matched on smoking status, the hazard ratio (HR) for death in p16+ oropharynx cases was 1.5 (95% confidence interval [CI]: 0.7-3.1) for smokers and 2.4 (95% CI: 0.7-8.8) for nonsmokers. Similarly, HR for death in non-HPV-associated HNSCC was 2.2 (95% CI: 1.7-3.0) for smokers and 2.4 (95% CI: 1.4-4.9) for nonsmokers. CONCLUSIONS: OS for HNSCC cases continues to decrease 5 years posttreatment, even after stratification by p16 and smoking status. Site, stage, smoking, and p16 status are significant factors. These data provide important prognostic information for HNSCC.

Item Type: Article
Subjects: Cancer Research
Depositing User: Rgcb Library
Date Deposited: 05 Sep 2019 06:36
Last Modified: 05 Sep 2019 06:36
URI: http://rgcb.sciencecentral.in/id/eprint/862

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