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HPV-associated cancer incidence rates point to needed efforts to increase HPV vaccination coverage

Date:
January 7, 2013
Source:
Journal of the National Cancer Institute
Summary:
Despite the decline in cancer death rates in the US, there is an increase in incidence rates for cancers associated with human papillomavirus (HPV) infection and more efforts are needed to increase HPV vaccination coverage levels to prevent the occurrence of these cancers in the future according to a study published Jan. 7 in the Journal of the National Cancer Institute.

Despite the decline in cancer death rates in the U.S., there is an increase in incidence rates for cancers associated with human papillomavirus (HPV) infection and more efforts are needed to increase HPV vaccination coverage levels to prevent the occurrence of these cancers in the future according to a study published Jan. 7 in the Journal of the National Cancer Institute.

The American Cancer Society (ACS), the Centers for Disease Control and Prevention (CDC), the National Cancer Institute (NCI), and the North American Association of Central Cancer Registries (NAACCR) annually provide updates on trends in cancer incidence and death rates in the United States. This year's report highlighted trends in incidence rates for HPV associated cancers and HPV vaccination coverage levels. Two HPV vaccines (bivalent and quadrivalent) have been shown to protect against most cervical cancers in women and one vaccine (quadrivalent) also protects against genital warts and cancers of the anus, vagina and vulva. There is no data available on vaccine efficacy for prevention HPV-associated cancers of the oropharynx.

In order to assess trends in HPV-associated cancer incidence rates and HPV vaccination coverage levels, Ahmedin Jemal, D.V.M., Ph.D., Surveillance Research Program, American Cancer Society, Atlanta, GA., and colleagues examined cancer incidence data reported by the CDC, and NCI, through NAACCR, as well as cancer mortality data from the CDC. The researchers determined trends in age-standardized incidence and death rates for all cancers combined and for the leading cancers among men and women, while HPV vaccination coverage levels during 2008 and 2010 and the prevalence of Papanicolaou (Pap) testing during 2010 were obtained from national surveys.

During 2000-2009, the researchers found that overall cancer death rates in the U.S. continue to decrease (including for lung, colorectal, female breast, and prostate cancers), but that death rates have increased for cancers of the liver, pancreas, uterine corpus, and melanoma of the skin among males. The incidence rates for these cancers continued to increase as well, including for some cancers associated with HPV infection. Nationally, 32.0% of females aged 13-17 years had received three doses of the HPV vaccine in 2010 showing the necessity for increased efforts to increase HPV vaccination coverage. "Continued monitoring of incidence and mortality trends for all cancers is warranted to inform cancer prevention and control policies and programs," the authors conclude.

In an accompanying editorial, Marc Brisson, Ph.D., Centre de recherche du CHU de Qu้bec, H๔pital Saint-Sacrement, Qu้bec, Canada, and colleagues write that HPV vaccination efforts should be focused on females because it's been predicted to be the most effective way to ensure population-level vaccine effectiveness. "Finding ways to increasing vaccine uptake is a key priority for HPV-related public health research in the United States."


Story Source:

The above story is based on materials provided by Journal of the National Cancer Institute. Note: Materials may be edited for content and length.


Journal Reference:

  1. Ahmedin Jemal, Edgar P. Simard, Christina Dorell, Anne-Michelle Noone, Lauri E. Markowitz, Betsy Kohler, Christie Eheman, Mona Saraiya, Priti Bandi, Debbie Saslow, Kathleen A. Cronin, Meg Watson, Mark Schiffman, S. Jane Henley, Maria J. Schymura, Robert N. Anderson, David Yankey, and Brenda K. Edwards. Annual Report to the Nation on the Status of Cancer, 1975–2009, Featuring the Burden and Trends in Human Papillomavirus (HPV)–Associated Cancers and HPV Vaccination Coverage Levels. Journal of the National Cancer Institute, 2013; DOI: 10.1093/jnci/djs491

Cite This Page:

Journal of the National Cancer Institute. "HPV-associated cancer incidence rates point to needed efforts to increase HPV vaccination coverage." ScienceDaily. ScienceDaily, 7 January 2013. <www.sciencedaily.com/releases/2013/01/130107162157.htm>.
Journal of the National Cancer Institute. (2013, January 7). HPV-associated cancer incidence rates point to needed efforts to increase HPV vaccination coverage. ScienceDaily. Retrieved October 22, 2014 from www.sciencedaily.com/releases/2013/01/130107162157.htm
Journal of the National Cancer Institute. "HPV-associated cancer incidence rates point to needed efforts to increase HPV vaccination coverage." ScienceDaily. www.sciencedaily.com/releases/2013/01/130107162157.htm (accessed October 22, 2014).

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