Int. J. Environ. Res. Public Health 2011, 8(10), 3821-3843; doi:10.3390/ijerph8103821
Article

Identification of Occupational Cancer Risks in British Columbia, Canada: A Population-Based Case—Control Study of 1,155 Cases of Colon Cancer

1,2,* email, 2email and 2,3email
Received: 8 August 2011; in revised form: 2 September 2011 / Accepted: 19 September 2011 / Published: 26 September 2011
(This article belongs to the Special Issue Occupational Cancer)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Objective: Cancer has been recognized to have environmental origin, but occupational cancer risk studies have not been fully documented. The objective of this paper was to identify occupations and industries with elevated colon cancer risk based on lifetime occupational histories collected from 15,463 incident cancer cases. Method: A group matched case-control design was used. All cases were diagnosed with histologically proven colon cancers, with cancer controls being all other cancer sites, excluding rectum, lung and unknown primary, diagnosed at the same period of time from the British Columbia Cancer Registry. Data analyses were done on all 597 Canadian standard occupation titles and 1,104 standard industry titles using conditional logistic regression for matched data sets and the likelihood ratio test. Results: Excess colon cancer risks was observed in a number of occupations and industries, particularly those with low physical activity and those involving exposure to asbestos, wood dusts, engine exhaust and diesel engine emissions, and ammonia. Discussion: The results of our study are in line with those from the literature and further suggest that exposure to wood dusts and to ammonia may carry an increased occupational risk of colon cancer.
Keywords: occupational cancer; colon cancer; cancer risk; occupational exposure; carcinogen
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MDPI and ACS Style

Fang, R.; Le, N.; Band, P. Identification of Occupational Cancer Risks in British Columbia, Canada: A Population-Based Case—Control Study of 1,155 Cases of Colon Cancer. Int. J. Environ. Res. Public Health 2011, 8, 3821-3843.

AMA Style

Fang R, Le N, Band P. Identification of Occupational Cancer Risks in British Columbia, Canada: A Population-Based Case—Control Study of 1,155 Cases of Colon Cancer. International Journal of Environmental Research and Public Health. 2011; 8(10):3821-3843.

Chicago/Turabian Style

Fang, Raymond; Le, Nhu; Band, Pierre. 2011. "Identification of Occupational Cancer Risks in British Columbia, Canada: A Population-Based Case—Control Study of 1,155 Cases of Colon Cancer." Int. J. Environ. Res. Public Health 8, no. 10: 3821-3843.

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