Glucose levels were not statistically different between patients with a prior diagnosis of NIDDM/pre-DM and those without (30.8 μmol/L vs. 35.7 μmol/L; p = 0.49), nor between patients treated with monotherapy or combination with anti-CTLA4 agents (33.5 μmol/L vs. 38.4 μmol/L; p = 0.48). This evidence concerns the gene CTLA4 and diabetes mellitus.