For the second paper in the journal, researchers at the Johns Hopkins University pooled data from 23 completed studies and found that people with diabetes were 41 percent more likely to die of cancer than people who did not have diabetes. Specifically, there was a 76 percent increase in the risk of death from endometrial cancer, a 61 percent increase for breast cancer, and a 32 percent increase for colorectal cancer.
The researchers said possible explanations range from an insulin environment that contributes to tumor cell proliferation, to less-rigorous screening practices, to complications from diabetes factoring into cancer treatment decisions.
Visit the American Diabetes Association for more on type 2 diabetes.
SOURCES: Dr. David J.A. Jenkins, Canada research chair, nutrition and metabolism, University of Toronto and St. Michael's Hospital; Suzanne Steinbaum, D.O., director, Women and Heart Disease, Lenox Hill Hospital, New York City; Dec. 17, 2008, Journal of the American Medical Association