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Eur J Cancer. 2006 Oct;42(15):2590-7. Epub 2006 Aug 17.

Physical activity, obesity, and risk of colon and rectal cancer in a cohort of Swedish men.

Author information

1
Division of Nutritional Epidemiology, The National Institute of Environmental Medicine, Karolinska Institutet, P.O. Box 210, SE-17177 Stockholm, Sweden. susanna.larsson@ki.se

Abstract

We investigated the association between physical activity and colorectal cancer risk in a cohort of Swedish men. Information on physical activity was obtained at baseline in 1997 with a self-administered questionnaire from 45,906 men who were cancer-free at enrollment. During a mean follow-up of 7.1 years, 496 cases of colorectal cancer occurred. Leisure-time physical activity was inversely associated with colorectal cancer risk; the multivariate hazard ratio (HR) for 60 min or more per day of leisure-time physical activity compared with less than 10 min per day was 0.57 (95% CI 0.41-0.79; P for trend=0.001). Results were similar for colon (HR=0.56; 95% CI 0.37-0.83) and rectal cancer (HR=0.59; 95% CI 0.34-1.02). Home/housework activity was inversely associated with colon cancer risk (HR=0.68; 95% CI 0.48-0.96). No association was observed for work/occupational activity. These results support a role of physical activity in reducing the risk of colon and rectal cancer.

PMID:
16914307
DOI:
10.1016/j.ejca.2006.04.015
[Indexed for MEDLINE]

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