Objective: The International Agency for Research on Cancer has classified 13 infectious agents as carcinogenic or probably carcinogenic to humans. We aimed to estimate the percentage (ie, population-attributable fraction) and number of incident cancer cases in Texas in 2015 that were attributable to oncogenic infections, overall and by race/ethnicity.
Methods: We calculated population-attributable fractions for cancers attributable to human papillomavirus (HPV), , hepatitis C virus (HCV), hepatitis B virus (HBV), and human herpesvirus 8 (HHV-8) infections using prevalence estimates from National Health and Nutrition Examination Survey laboratory data and relative risks associated with infection from previous epidemiological studies. The Texas Cancer Registry provided cancer incidence data.
Results: We estimated that 3603 excess cancer cases, or 3.5% of all cancers diagnosed in 2015, among adults aged ≥25 in Texas were attributable to oncogenic infections. Hispanic adults had the highest proportion of cancer cases attributable to infections (5.6%), followed by non-Hispanic Black (5.4%) and non-Hispanic White (2.3%) adults. HPV infection caused the highest proportion of all cancer cases (1.8%) compared with other oncogenic infections (HCV, 0.8%; , 0.5%; HBV, 0.3%; HHV-8, 0.1%). Hispanic adults had the highest proportions of all cancers caused by HPV infection (2.6%) and (1.1%), and non-Hispanic Black adults had the highest proportions of all cancers caused by HCV infection (1.7%), HBV infection (0.7%), and HHV-8 (0.3%).
Conclusion: Preventable oncogenic infections contribute to cancer incidence in Texas and may affect racial/ethnic minority groups disproportionately. Infection control and prevention should be stressed as an important component of cancer prevention.
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| http://dx.doi.org/10.1177/0033354920954497 | DOI Listing |
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