Metformin use was associated with a decreased risk of pancreatic cancer in women, but not in men, in a large case-control study involving more than 19,300 U.K. primary care patients.Additionally, use of insulin and sulfonylureas was found in the study to be associated with increased risk of pancreatic cancer in both men and women, Dr. Michael Bodmer of the University of Basel, Switzerland, and his colleagues reported online in the Jan. 31 issue of the American Journal of Gastroenterology.Overall,...