Low Dose Aspirin Cuts Colon Cancer Risk in Women

AspirinNancy Cook, SCD of Brigham and Women’s Hospital in Boston and colleagues reported in the July 16, 2013 issue of the Annals of Internal Medicine that data from the Women’s Health Initiative including 39,876 women 45 years or older, who were randomly assigned to take 100 mg of aspirin every other day for ten years, experienced a 20% reduction in the risk of colorectal cancer. The study did not show that there was an all-cause reduction in mortality .

The very conservative US Preventive Services Task Force currently recommends aspirin in Women 55 – 79 only if potential benefits are greater than harms. The aspirin group did have more bleeding from peptic ulcers and gastrointestinal bleeding. The article was accompanied by an editorial comment by Peter Rothwell, MD, PhD of the University of Oxford. He felt that the risk of bleeding and the fact that there was no all-cause mortality reduction, or risk in all cause cancer reduction, should result in a tempering of suggestions for widespread use of aspirin in healthy middle-aged women. MedPage Today, the online Journal of the University Of Pennsylvania School Of Medicine, ran a comment from Dr. Randal Burt, MD, a gastroenterologist at the Huntsman Cancer Institute who felt that this was one more piece of evidence that aspirin can reduce colorectal cancer.

It is clear that there are multiple studies showing that aspirin can reduce the risk of colorectal cancer. There are studies showing it reduces the risk of a stroke in women as well.

Like all decisions to take or prescribe a medication, the risks and benefits must be examined first. It is clear to me that in a woman with a strong family history of colorectal cancer, and little or no history of gastrointestinal or systemic bleeding, an aspirin with close monitoring should seriously be considered.

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