Evaluation of proposed staging systems for human papillomavirus‐related oropharyngeal squamous cell carcinoma

Autor: William H. Westra, Jeremy D. Richmon, Ian James Malm, Wayne M. Koch, Linda X. Yin, David W. Eisele, Caleb J. Fan, Harry Quon, David X. Li, Christine G. Gourin, Karen T. Pitman, Hyunseok Kang, Carole Fakhry
Rok vydání: 2017
Předmět:
Zdroj: Cancer. 123:1768-1777
ISSN: 1097-0142
0008-543X
DOI: 10.1002/cncr.30512
Popis: BACKGROUND Patients with human papillomavirus (HPV)-related oropharyngeal cancer (OPC) have improved survival when compared with those with HPV-negative OPC. Unfortunately, the American Joint Committee on Cancer seventh edition (AJCC-7ed) staging system does not account for the prognostic advantage observed with HPV-positive OPC. The purpose of the current study was to validate and compare 2 recently proposed staging systems for HPV-positive OPC. METHODS Patients treated for HPV-positive OPC from 2005 to 2015 at Johns Hopkins Hospital (JHH) were included for analysis. The International Collaboration on Oropharyngeal cancer Network for Staging (ICON-S) and The University of Texas MD Anderson Cancer Center (MDACC) staging systems were applied and survival was calculated using Kaplan-Meier methods. Cox proportional hazard regression was used to determine the relationship between stage of disease and survival. Models were compared using the Akaike information criterion (AIC). RESULTS A total of 435 patients were eligible for analysis. There was a dramatic shift in lymph node category and overall stage of disease when ICON-S and MDACC stage were applied to the JHH cohort. There was superior stratification of overall survival and progression-free survival by ICON-S stage. Both proposed models had an improved fit based on AIC scores (P
Databáze: OpenAIRE