期刊
BRITISH JOURNAL OF CANCER
卷 112, 期 11, 页码 1733-1736出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/bjc.2015.139
关键词
human papillomavirus; oropharyngeal cancer; prognostic model validation
类别
资金
- CTMM framework (AIRFORCE Project) [030-103]
- Dutch Cancer Society Grant [VU 2009-4531]
- EU
Objective: The presence of human papillomavirus (HPV) infection in oropharyngeal squamous cell carcinoma (OPSCC) is a major determinant in prognostic risk modelling. Recently, a prognostic model was proposed in which HPV status, comorbidity and nodal stage were the most important prognostic factors to determine high-, intermediate-and low-risk survival groups. Here, we report on the validation of this model using an independent single-institutional cohort. Methods: A total number of 235 patients curatively treated for OPSCC in the period 2000-2011 at the MUMC (Maastricht University Medical Center, The Netherlands) were included. The presence of an oncogenic HPV infection was determined by p16 immunostaining, followed by a high-risk HPV DNA PCR on the p16-positive cases. The model variables included were HPV status, comorbidity and nodal stage. As a measure of model performance, the Harrell's Concordance index (Harrell's C-index) was used. Results: The 5-year overall survival (OS) estimates were 84.6%, 54.5% and 28.7% in the low-, intermediate-and high-risk group, respectively. The difference between the survival curves was highly significant (P<0.001). The Harrell's C-index was 0.69 (95% confidence interval (CI): 0.63-0.75). Conclusion: In this study a previously developed prognostic risk model was validated. This model will help to personalise treatment in OPSCC patients. This model is publicly available at www.predictcancer.org.
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