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Spatiotemporal Trends in Oral Cancer Mortality and Potential Risks Associated with Heavy Metal Content in Taiwan Soil

Author

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  • Chi-Ting Chiang

    (Department of Bioenvironmental Systems Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei City 106, Taiwan)

  • Ie-Bin Lian

    (Graduate Institute of Statistics & Information Science, National Changhua University of Education, No. 1, Jin-De Road, Changhua 500, Taiwan)

  • Che-Chun Su

    (Department of Internal Medicine, Changhua Christian Hospital, No. 135, Nanxiao Street, Changhua 500, Taiwan)

  • Kuo-Yang Tsai

    (Department of Dentistry, Changhua Christian Hospital, No. 135, Nanxiao Street, Changhua 500, Taiwan)

  • Yu-Pin Lin

    (Department of Bioenvironmental Systems Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei City 106, Taiwan)

  • Tsun-Kuo Chang

    (Department of Bioenvironmental Systems Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei City 106, Taiwan)

Abstract

Central and Eastern Taiwan have alarmingly high oral cancer (OC) mortality rates, however, the effect of lifestyle factors such as betel chewing cannot fully explain the observed high-risk. Elevated concentrations of heavy metals in the soil reflect somewhat the levels of exposure to the human body, which may promote cancer development in local residents. This study assesses the space-time distribution of OC mortality in Taiwan, and its association with prime factors leading to soil heavy metal content. The current research obtained OC mortality data from the Atlas of Cancer Mortality in Taiwan, 1972–2001, and derived soil heavy metals content data from a nationwide survey carried out by ROCEPA in 1985. The exploratory data analyses showed that OC mortality rates in both genders had high spatial autocorrelation (Moran’s I = 0.6716 and 0.6318 for males and females). Factor analyses revealed three common factors (CFs) representing the major pattern of soil pollution in Taiwan. The results for Spatial Lag Models (SLM) showed that CF1 (Cr, Cu, Ni, and Zn) was most spatially related to male OC mortality which implicates that some metals in CF1 might play as promoters in OC etiology.

Suggested Citation

  • Chi-Ting Chiang & Ie-Bin Lian & Che-Chun Su & Kuo-Yang Tsai & Yu-Pin Lin & Tsun-Kuo Chang, 2010. "Spatiotemporal Trends in Oral Cancer Mortality and Potential Risks Associated with Heavy Metal Content in Taiwan Soil," IJERPH, MDPI, vol. 7(11), pages 1-13, November.
    • Handle: RePEc:gam:jijerp:v:7:y:2010:i:11:p:3916-3928:d:10123
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    Citations

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    Cited by:

    1. Tao Hu & Qingyun Du & Fu Ren & Shi Liang & Denan Lin & Jiajia Li & Yan Chen, 2014. "Spatial Analysis of the Home Addresses of Hospital Patients with Hepatitis B Infection or Hepatoma in Shenzhen, China from 2010 to 2012," IJERPH, MDPI, vol. 11(3), pages 1-13, March.
    2. Chi-Ting Chiang & Ie-Bin Lian & Ying-Fang Chang & Tsun-Kuo Chang, 2014. "Geospatial Disparities and the Underlying Causes of Major Cancers for Women in Taiwan," IJERPH, MDPI, vol. 11(6), pages 1-15, May.
    3. 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.

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