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# Diabetes linked to bladder cancer
- URL: https://www.foodconsumer.org/diabetes_bladder_cancer_0117130844/
- Published: 2013-01-17T09:43:00.000Z
- Updated: 2026-09-22T16:23:43.000Z
- Description: Drawing on the Iowa Women's Health Study of 37,327 postmenopausal women, researchers found those with diabetes were 69% more likely to develop bladder cancer. Diabetic women with a waist-to-hip ratio above 0.9 faced 2.5 times the risk of those with a smaller ratio.
- Author: Food Consumer
- Tags: Disease, Health News, #vivvo-import

By David Liu, PHD

Thursday Jan 17, 2013 (foodconsumer.org) -- Having diabetes mellitus may increase risk of bladder cancer risk, according to a study published in Cancer Causes and Control.

The study led by A. E. Prizment from School of Public Health, University of Minnesota in Minneapolis, MN found postmenopausal women who had diabetes mellitus were 69 percent more likely to develop bladder cancer, compared with those without diabetes.

The link has been established in an early study, which did not adjusted for confounders though, according to the study report. The current study was based on the same set of data, but adjusted for the confounders.

The data used for the study came from the Iowa Women's Health Study of 37,327 postmenopausal women who were free of cancer at baseline. 

Additionally, the waist-to-hip ratio was associated with the risk of bladder cancer among postmenopausal women. Bladder cancer risk in diabetic women with the waist-to-hip ratio at greater than 0.9 was found 2.5 times higher than those with a smaller ratio.

The researchers concluded "We confirmed a positive association between diabetes and bladder cancer risk among white postmenopausal women. We also observed a synergistic interaction between diabetes and high WHR in bladder cancer development that might be explained by increased insulin resistance and inflammation related to abdominal obesity."

Bladder cancer was expected to be diagnosed in 73,500 men and women in the United States in 2012 and 14,880 patients were expected to die from the disease and its complications, according to the National Cancer Institute.