4.7 Article

Cancer incidence in ThyborOn-HarboOre, Denmark: a cohort study from an industrially contaminated site

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SCIENTIFIC REPORTS
卷 11, 期 1, 页码 -

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NATURE RESEARCH
DOI: 10.1038/s41598-021-92446-y

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  1. Kirsten and Freddy Johansen's Fund

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In a Danish fishing community, a chemical factory pollution was found to significantly increase cancer incidence, particularly for kidney, bladder, stomach, lung, and colorectal cancer. The cancer risk for residents at the height of pollution was 20% higher compared to those living in non-polluted fishing communities, suggesting a potential impact of chemical pollution on cancer risk.
In a fishing community ThyborOn-HarboOre on the Danish West coast, a chemical factory polluted air, sea, and ground with>100 xenobiotic compounds. We investigated cancer incidence in the community. A historical cohort was identified from the Central Population Register and followed for cancer incidence in the Danish Cancer Register including inhabitants from 1968-1970 at height of pollution, and newcomers in 1990-2006 after pollution control. Two fishing communities without pollution, Holmsland and Hanstholm, were referent cohorts. We calculated rate ratios (RR) and 95% confidence intervals (CI). In 1968-1970, 4914 persons lived in ThyborOn-HarboOre, and 9537 persons in Holmsland-Hanstholm. ThyborOn-HarboOre had a statistically significant excess cancer incidence compared with Holmsland-Hanstholm; RR 1.20 (95% CI 1.11-1.29) deriving from kidney and bladder cancer; stomach and lung cancer in men, and colorectal cancer in women. In 1990-2006, 2933 persons came to live in ThyborOn-HarboOre. Their cancer incidence was the same as for newcomers to Holmsland-Hanstholm; RR 1.07 (95% CI 0.88-1.30). Persons in ThyborOn-HarboOre at height of chemical pollution had a cancer risk 20% above persons living in non-polluted fishing communities with a pattern unlikely to be attributable to life style. The study suggested that chemical pollution may have affected cancer risk.

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