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P R Health Sci J. 2013 Dec;32(4):175-81.

Incidence of oral cavity and pharyngeal cancers by anatomical sites in population-based registries in Puerto Rico and the United States of America.

Author information

1
Department of Biostatistics and Epidemiology, Graduate School of Public Health, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico. erick.suarez@upr.edu
2
Research Design, Biostatistics, and Clinical Research Ethics, Puerto Rico Clinical and Translational Research Consortium, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico. UPR/MDACC Partnership in Excellence in Cancer Research Program, School of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico.
3
Department of Restorative Sciences, School of Dental Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico.
4
Center for Health Promotion and Prevention Research, University of Texas, School of Public Health, Houston, Texas, USA.
5
Department of Surgical Sciences, School of Dental Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico.
6
Department of Biostatistics and Epidemiology, Graduate School of Public Health, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico.

Abstract

OBJECTIVE:

Puerto Rico's (PR) epidemiological data on each oral cavity and pharynx cancer (OCPC) site is yet largely unexplored. Our aim was to compare OCPC incidence in PR, by anatomical site, with that of non-Hispanic whites (NHW), non-Hispanic blacks (NHB), and Hispanic (USH) individuals in the USA.

METHODS:

Data from the Surveillance Epidemiology and End Results program and the PR Central Cancer Registry were collected and analyzed. Age-standardized rates, percent changes, and standardized rate ratios were estimated with 95% confidence intervals.

RESULTS:

Although declining incidence rates were observed for most anatomical sites in most racial/ethnic groups and in both sexes, the incidence of oropharynx cancers slightly increased for cancers in the oropharynx among PR women, both in the base of tongue and soft palate/other oropharynx (p>0.05). The incidence of soft palate/other oropharynx cancers in PR men was about 2.8 times higher than in USH men (p<0.05) and about 1.4 times higher than in NHW men but 21% lower than in NHB men (p>0.05). Significant interactions terms formed with racial/ethnic group and age were shown in various sites. The largest differences between sexes were consistently noted in PR.

CONCLUSION:

Further research in PR should assess the effect of the HPV infection, as well as of other risk factors, in OCPC incidence by anatomical site in younger populations. These data could explain more precisely the reasons for the differences observed in this study, particularly among sexes in PR.

PMID:
24397214
PMCID:
PMC4994517
[Indexed for MEDLINE]
Free PMC Article

Conflict of interest statement

The authors have no conflict of interest to disclose.

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