FoodConsumer.org - One study led by J. Luo of Mary Babb Randolph Cancer Center, West Virginia University in Morgantown, WV showed women with self-reported treated diabetes mellitu stype 2 were 27 percent more likely to be diagnosed with lung cancer, compared with those who did not have the disease.

http://www.foodconsumer.org/newsite/Non-food/Drug/diabetes_insulin_treatments_boost_lung_cancer_risk_1029120733.html