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Geographical Variation in Oral and Oropharynx Cancer Mortality in Brazil: A Bayesian Approach

Author

Listed:
  • Emílio Prado da Fonseca

    (Health Surveillance Department, Divinópolis, Minas Gerais 35500-007, Brazil)

  • Regiane Cristina do Amaral

    (Dentistry Department, Federal University of Sergipe, Aracaju, Sergipe 49060-108, Brazil)

  • Antonio Carlos Pereira

    (Department of Community Dentistry, Preventive Dentistry and Public Health area of Piracicaba Dental School, FOP/UNICAMP, University of Campinas, Piracicaba, São Paulo 13414-903, Brazil)

  • Carla Martins Rocha

    (International Research Collaborative-Oral Health Equity Anatomy, Physiology and Human Biology, University of Western Australia, Perth 6907, Australia)

  • Marc Tennant

    (International Research Collaborative-Oral Health Equity Anatomy, Physiology and Human Biology, University of Western Australia, Perth 6907, Australia)

Abstract

Recent studies have shown a high number of deaths from oral and oropharyngeal cancer worldwide, Brazil included. For this study, the deaths data (ICD-10, chapter II, categories C00 to C14) was obtained from Mortality Information System (SIM) and standardized by gender and population for each of the 554 Microregions of Brazil. The raw mortality rates were adopted as the standard and compared to the application of smoothing by the Bayesian model. In order to describe the geographical pattern of the occurrence of oral cancer, thematic maps were constructed, based on the distributions of mortality rates for Microregions and gender. Results : There were 7882 deaths registered due to oral and oropharyngeal cancer in Brazil, of which 6291 (79.81%) were male and 1591 (20.19%) female. The Empirical Bayesian Model presented greater scattering with mosaic appearance throughout the country, depicting high rates in Southeast and South regions interpolated with geographic voids of low rates in Midwest and North regions. For males, it was possible to identify expressive clusters in the Southeast and South regions. Conclusion : The Empirical Bayesian Model allowed an alternative interpretation of the oral and oropharynx cancer mortality mapping in Brazil.

Suggested Citation

  • Emílio Prado da Fonseca & Regiane Cristina do Amaral & Antonio Carlos Pereira & Carla Martins Rocha & Marc Tennant, 2018. "Geographical Variation in Oral and Oropharynx Cancer Mortality in Brazil: A Bayesian Approach," IJERPH, MDPI, vol. 15(12), pages 1-9, November.
    • Handle: RePEc:gam:jijerp:v:15:y:2018:i:12:p:2641-:d:185415
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    References listed on IDEAS

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    1. Wei-Chih Lin & Yu-Pin Lin & Yung-Chieh Wang & Tsun-Kuo Chang & Li-Chi Chiang, 2014. "Assessing and Mapping Spatial Associations among Oral Cancer Mortality Rates, Concentrations of Heavy Metals in Soil, and Land Use Types Based on Multiple Scale Data," IJERPH, MDPI, vol. 11(2), pages 1-21, February.
    2. Roger J. Marshall, 1991. "Mapping Disease and Mortality Rates Using Empirical Bayes Estimators," Journal of the Royal Statistical Society Series C, Royal Statistical Society, vol. 40(2), pages 283-294, June.
    3. Xuelin Huang & Yisheng Li & Juhee Song & Donald A. Berry, 2018. "A Bayesian Simulation Model for Breast Cancer Screening, Incidence, Treatment, and Mortality," Medical Decision Making, , vol. 38(1_suppl), pages 78-88, April.
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