Reduced burden of Arsenic-Related cancers after water mitigation in Taiwan

Background: Epidemiological evidence has demonstrated an association between arsenic in drinking water and increased cancer incidence. This population-based study investigates the impact of a tap water supply system installation in Blackfoot disease-endemic regions of Taiwan on cancer incidence. Met...

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Main Authors: Jing-Rong Jhuang, Chih-Hung Lee, Chun-Ju Chiang, Chien-Jen Chen, Wen-Chung Lee
Format: Article
Language:English
Published: Elsevier 2024-03-01
Series:Environment International
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0160412024001284
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author Jing-Rong Jhuang
Chih-Hung Lee
Chun-Ju Chiang
Chien-Jen Chen
Wen-Chung Lee
author_facet Jing-Rong Jhuang
Chih-Hung Lee
Chun-Ju Chiang
Chien-Jen Chen
Wen-Chung Lee
author_sort Jing-Rong Jhuang
collection DOAJ
description Background: Epidemiological evidence has demonstrated an association between arsenic in drinking water and increased cancer incidence. This population-based study investigates the impact of a tap water supply system installation in Blackfoot disease-endemic regions of Taiwan on cancer incidence. Methods: By using the Taiwan Cancer Registry dataset, we enrolled patients aged 40–84 diagnosed with arsenic-related cancers, including hepatocellular carcinoma, small and squamous cell lung cancer, Bowen’s disease, basal and squamous cell skin cancer, urothelial bladder cancer, and upper tract urothelial carcinoma between 1995 and 2019. Random-effects age-period-cohort models were used to estimate the cancer incidence data, and a stabilized kriging method was employed to interpolate incidence rates to more precise spatiotemporal units. Results: The results showed that the age-standardized incidence rates of all six types of studied cancers were consistently higher in Blackfoot disease-endemic areas than those in other areas from 1995 to 2019. However, the gap in incidence rates between Blackfoot disease-endemic areas and the remaining regions began to narrow approximately after the 1960 birth cohort when the tap water supply system installation commenced. For small and squamous cell lung cancer, Bowen’s disease, and urothelial bladder cancer, the excess incidence rates sharply declined to null for those born after the year of arsenic mitigation. For upper tract urothelial carcinoma, the excess incidence rates decreased more gradually for those born after the year of arsenic mitigation. For hepatocellular carcinoma and basal and squamous cell skin cancer, the excess incidence rates remained constant. Spatiotemporal clusters of high incidence rates were identified in the core townships of Blackfoot disease-endemic areas. These clusters began to dissipate mainly after the 1960 birth cohort. Conclusion: Arsenic mitigation from drinking water in Taiwan is associated with a reduced burden of small and squamous cell lung cancers, Bowen’s disease, urothelial bladder cancer, and upper tract urothelial carcinoma.
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spelling doaj.art-51a1dd74ed6944ce9c89d2b168ddbc852024-03-23T06:22:17ZengElsevierEnvironment International0160-41202024-03-01185108542Reduced burden of Arsenic-Related cancers after water mitigation in TaiwanJing-Rong Jhuang0Chih-Hung Lee1Chun-Ju Chiang2Chien-Jen Chen3Wen-Chung Lee4Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan; Taiwan Cancer Registry, Taipei, TaiwanDepartment of Dermatology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, TaiwanInstitute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan; Taiwan Cancer Registry, Taipei, TaiwanGenomics Research Center, Academia Sinica, Taipei, Taiwan; College of Medicine, Fu-Jen Catholic University, New Taipei, TaiwanInstitute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan; Taiwan Cancer Registry, Taipei, Taiwan; Institute of Health Data Analytics and Statistics, College of Public Health, National Taiwan University, Taipei, Taiwan; Corresponding author at: Institute of Health Data Analytics and Statistics, College of Public Health, National Taiwan University, Rm. 536, No. 17, Xuzhou Rd., Taipei 100, Taiwan.Background: Epidemiological evidence has demonstrated an association between arsenic in drinking water and increased cancer incidence. This population-based study investigates the impact of a tap water supply system installation in Blackfoot disease-endemic regions of Taiwan on cancer incidence. Methods: By using the Taiwan Cancer Registry dataset, we enrolled patients aged 40–84 diagnosed with arsenic-related cancers, including hepatocellular carcinoma, small and squamous cell lung cancer, Bowen’s disease, basal and squamous cell skin cancer, urothelial bladder cancer, and upper tract urothelial carcinoma between 1995 and 2019. Random-effects age-period-cohort models were used to estimate the cancer incidence data, and a stabilized kriging method was employed to interpolate incidence rates to more precise spatiotemporal units. Results: The results showed that the age-standardized incidence rates of all six types of studied cancers were consistently higher in Blackfoot disease-endemic areas than those in other areas from 1995 to 2019. However, the gap in incidence rates between Blackfoot disease-endemic areas and the remaining regions began to narrow approximately after the 1960 birth cohort when the tap water supply system installation commenced. For small and squamous cell lung cancer, Bowen’s disease, and urothelial bladder cancer, the excess incidence rates sharply declined to null for those born after the year of arsenic mitigation. For upper tract urothelial carcinoma, the excess incidence rates decreased more gradually for those born after the year of arsenic mitigation. For hepatocellular carcinoma and basal and squamous cell skin cancer, the excess incidence rates remained constant. Spatiotemporal clusters of high incidence rates were identified in the core townships of Blackfoot disease-endemic areas. These clusters began to dissipate mainly after the 1960 birth cohort. Conclusion: Arsenic mitigation from drinking water in Taiwan is associated with a reduced burden of small and squamous cell lung cancers, Bowen’s disease, urothelial bladder cancer, and upper tract urothelial carcinoma.http://www.sciencedirect.com/science/article/pii/S0160412024001284Drinking waterArsenic mitigationCancer incidenceAge-period-cohort analysis
spellingShingle Jing-Rong Jhuang
Chih-Hung Lee
Chun-Ju Chiang
Chien-Jen Chen
Wen-Chung Lee
Reduced burden of Arsenic-Related cancers after water mitigation in Taiwan
Environment International
Drinking water
Arsenic mitigation
Cancer incidence
Age-period-cohort analysis
title Reduced burden of Arsenic-Related cancers after water mitigation in Taiwan
title_full Reduced burden of Arsenic-Related cancers after water mitigation in Taiwan
title_fullStr Reduced burden of Arsenic-Related cancers after water mitigation in Taiwan
title_full_unstemmed Reduced burden of Arsenic-Related cancers after water mitigation in Taiwan
title_short Reduced burden of Arsenic-Related cancers after water mitigation in Taiwan
title_sort reduced burden of arsenic related cancers after water mitigation in taiwan
topic Drinking water
Arsenic mitigation
Cancer incidence
Age-period-cohort analysis
url http://www.sciencedirect.com/science/article/pii/S0160412024001284
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AT chunjuchiang reducedburdenofarsenicrelatedcancersafterwatermitigationintaiwan
AT chienjenchen reducedburdenofarsenicrelatedcancersafterwatermitigationintaiwan
AT wenchunglee reducedburdenofarsenicrelatedcancersafterwatermitigationintaiwan