IFNG and diabetes mellitus: In multivariable analysis of the matched population, LTBI remained associated with higher IFN-γ concentrations after adjusting for age, gender, race, history of diabetes mellitus, history of hyper-tension, current tobacco use, HIV status, BMI, total cholesterol, triglycerides, HDL, LDL, and lymphocyte count (adjusted odds ratio, 1.79, 95%CI, 1.26 – 2.53; P = 0.001).