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Head Neck Pathol. 2012 Jul;6 Suppl 1:S16-24. doi: 10.1007/s12105-012-0377-0. Epub 2012 Jul 3.

Epidemiology and clinical aspects of HPV in head and neck cancers.

Author information

  • Infections and Immunoepidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 6120 Executive Boulevard, EPS 7072, Rockville, MD 20852, USA. chaturva@mail.nih.gov

Abstract

Human papillomavirus (HPV) infection is now established as a major etiologic factor for oropharyngeal cancers. Case-control studies conducted around the world show strong and consistent associations of markers of HPV exposure with risk of oropharyngeal cancers (range of odds ratios [OR] for oral oncogenic HPV infections = 3.6-230.0, ORs for HPV16 L1 antibodies = 2.3-182.0, and ORs for HPV16 E6/E7 antibodies = 9.2-231.0. HPV-positive oropharyngeal cancers are epidemiologically distinct from HPV-negative ones, and are characterized by younger age at onset, male predominance, and strong association with sexual behaviors. Importantly, HPV-positive oropharyngeal cancer patients have substantially improved outcomes (28-80 % reductions in the risk of death) than HPV-negative patients. Given the superior survival, younger age, and good performance status of HPV-positive oropharyngeal cancer patients, de-intensified therapies are currently being considered for this group of patients. Recent analyses of cancer registry data show dramatic increases in incidence of oropharyngeal cancers during the past 15-20 years in several parts of the world, highlighting the need for prevention strategies. If proven efficacious, currently available prophylactic HPV vaccines hold great promise for primary prevention of HPV-associated oropharyngeal cancers.

PMID:
22782220
[PubMed - indexed for MEDLINE]
PMCID:
PMC3394159
Free PMC Article
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