Diabetes appears to be associated with higher mortality risk for many diseases, including several types of cancer. An analysis of more than 1 million American adults without cancer revealed that diabetes increased risks for dying from cancers of the liver, endometrium, colon, and breast among women. Among men, diabetes increased the risk of death from cancers of the breast, liver, oral cavity and pharynx, pancreas, bladder, colon, and (inversely) prostate. For both genders, diabetes was associated with higher mortality involving the circulatory, respiratory, digestive, and genitourinary systems.
Abstract: Diabetes Care, September 2012.