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Smoking, snus use and risk of right‐ and left‐sided colon, rectal and anal cancer: A 37‐year follow‐up study by Caroline Nordenvall; Per J. Nilsson; Weimin Ye; Olof Nyrén is a Medicine article available to read on EtoBox.

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## Abstract Although some authorities consider smoking to be an established risk factor for colorectal cancer, the international literature is not entirely consistent. Further, only 1 study has addressed the association with smokeless tobacco and none with Scandinavian moist snuff (snus). This retrospective cohort study included 336,381 male Swedish construction workers with detailed information on tobacco use at cohort entry in 1971–1992. Complete follow‐up through 2007 was accomplished by means of linkage to population and health registers. Hazard ratios (HRs) and 95% confidence intervals (CIs) derived from Cox proportional hazards regression models estimated relative risks, adjusted for age and body mass index. Subjects who were never‐users of any tobacco served as reference. After up to 37 years of follow‐up, pure smoking was associated with a marginally increased risk of colon cancer (HR 1.08, 95% CI 0.99–1.19), a modestly elevated risk of rectal cancer (HR 1.16, 95% CI 1.04–1.30) and a substantial excess risk of anal cancer (HR 2.41, 95% CI 1.06–5.48). Snus use was not significantly associated with an increased risk of colorectal or anal cancer, although the point estimate fo

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Author

Caroline Nordenvall; Per J. Nilsson; Weimin Ye; Olof Nyrén

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley; Research Square; Test accounts (ISSN 0020-7136)

Published

2010

Language

EN

Field

Medicine (Health Sciences)