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Smoking is Associated with Rectal Cancer

Date:
November 14, 2007
Source:
Journal of the National Cancer Institute
Summary:
Cigarette smoking may be a risk factor for rectal -- but not colon -- cancer. The evidence linking cigarette smoking and colorectal cancer risk has been inconsistent.
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Cigarette smoking may be a risk factor for rectal-- but not colon--cancer.

The evidence linking cigarette smoking and colorectal cancer risk has been inconsistent.

Electra Paskett, Ph.D., of Ohio State University in Columbus and colleagues investigated the association between smoking history and colorectal cancer among nearly 147,000 participants in the Women's Health Initiative.

After an average follow-up of about 8 years, 1,242 women were diagnosed with colorectal cancer. Increased colorectal cancer incidence was associated with more cigarettes smoked per day, more years as a smoker, and older age when the women quit smoking.

Current smokers were at an increased risk for rectal cancer, but not colon cancer, compared with never smokers. Secondhand exposure to cigarette smoke was not associated with either cancer.

"Our data add to the extensive evidence indicating that preventing smoking initiation and decreasing the duration of smoking might reduce colorectal cancer risk," the authors write.

This research was published recently in the Journal of The National Cancer Institute.


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The above post is reprinted from materials provided by Journal of the National Cancer Institute. Note: Materials may be edited for content and length.


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Journal of the National Cancer Institute. "Smoking is Associated with Rectal Cancer." ScienceDaily. ScienceDaily, 14 November 2007. <www.sciencedaily.com/releases/2007/11/071113165642.htm>.
Journal of the National Cancer Institute. (2007, November 14). Smoking is Associated with Rectal Cancer. ScienceDaily. Retrieved August 1, 2015 from www.sciencedaily.com/releases/2007/11/071113165642.htm
Journal of the National Cancer Institute. "Smoking is Associated with Rectal Cancer." ScienceDaily. www.sciencedaily.com/releases/2007/11/071113165642.htm (accessed August 1, 2015).

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