TY - JOUR
T1 - Oropharyngeal cancer is no longer a disease of younger patients and the prognostic advantage of Human Papillomavirus is attenuated among older patients
T2 - Analysis of the National Cancer Database
AU - Rettig, Eleni
AU - Zaidi, Munfarid
AU - Faraji, Farhoud
AU - Eisele, David W.
AU - El Asmar, Margueritta
AU - Fung, Nicholas
AU - D'Souza, Gypsyamber
AU - Fakhry, Carole
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/8
Y1 - 2018/8
N2 - 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%, p trend < 0.001). Although patients ≥70 years with HPV-OPC had improved survival compared to those with HPV-negative OPC (adjusted hazard ratio [aHR] = 0.65, 95%CI = 0.55–0.76), the survival benefit of HPV-positive tumor status was significantly attenuated compared to younger HPV-OPC patients (50–59 years: aHR = 0.45, 95%CI = 0.39–0.51; p interaction < 0.001). Conclusion: The age at OPC diagnosis is increasing for both HPV-positive and HPV-negative patients, and a rising proportion of older patients have HPV-positive tumors. These findings dispel the notion that HPV-positive OPC is a disease of younger patients, identify a growing elderly population of HPV-positive OPC patients with reduced survival, and have implications for evolving treatment paradigms.
AB - 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%, p trend < 0.001). Although patients ≥70 years with HPV-OPC had improved survival compared to those with HPV-negative OPC (adjusted hazard ratio [aHR] = 0.65, 95%CI = 0.55–0.76), the survival benefit of HPV-positive tumor status was significantly attenuated compared to younger HPV-OPC patients (50–59 years: aHR = 0.45, 95%CI = 0.39–0.51; p interaction < 0.001). Conclusion: The age at OPC diagnosis is increasing for both HPV-positive and HPV-negative patients, and a rising proportion of older patients have HPV-positive tumors. These findings dispel the notion that HPV-positive OPC is a disease of younger patients, identify a growing elderly population of HPV-positive OPC patients with reduced survival, and have implications for evolving treatment paradigms.
KW - Aging
KW - Elderly
KW - Head and neck cancer
KW - Human papillomavirus
KW - Oropharynx cancer
KW - Survival
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U2 - 10.1016/j.oraloncology.2018.06.013
DO - 10.1016/j.oraloncology.2018.06.013
M3 - Article
C2 - 30098771
AN - SCOPUS:85049045247
SN - 1368-8375
VL - 83
SP - 147
EP - 153
JO - Oral Oncology
JF - Oral Oncology
ER -