Study: Risk of breast cancer more apparent among women with Type 2 diabetes

NEW YORK — A study conducted by the University of Alberta found that women with Type 2 diabetes have an increased risk of developing breast cancer.

The study, which was published in the Oct. 4 issue of Diabetes Care, examined 170,000 premenopausal (under the age of 55 years) and postmenopausal women (ages 55 years and older), half of which were diagnosed with Type 2 diabetes. After following up with them four to five years later, 1.4% of all women were diagnosed with breast cancer; however, postmenopausal women diagnosed with Type 2 diabetes were more likely to develop breast cancer.

Commenting on the results, study author Jeffrey Johnson told Reuters Health that "the relationship that we see (between diabetes and cancer), we wondered if it was something about the fact that people with diabetes go to the doctor's office more often. When a new diagnosis of diabetes is made, people undergo a lot of tests and general health exams."

"I think there are so many things going on in the relationship that this is maybe only one part of it. We're really early on in understanding this relationship," he said.