Read the paper that inspired Professor Giorgino:
Hu FB, Stampfer MJ, Haffner SM, Solomon CG, Willett WC, Manson JE. Elevated risk of cardiovascular disease prior to clinical diagnosis of type 2 diabetes. Diabetes Care. 2002 Jul;25(7):1129-34.
http://pubmed.ncbi.nlm.nih.gov/12087009/