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Diabetes again linked to colon cancer risk

A new research review confirms that people with diabetes have a somewhat increased risk of colon cancer — but the reasons for the connection, and what should be done about it, remain unclear.  Combining the results of 14 international studies, researchers found that overall, people with diabetes were 38 percent more likely to be diagnosed with colon cancer than those who were diabetes-free.

There was also a 20 percent increase in the risk of rectal cancer, though that appeared to be confined to men. The findings, reported in the American Journal of Gastroenterology, do not prove that diabetes directly contributes to colon cancer in some people. [MedlinePlus]

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