After adjustment in the multivariate model, age (OR = 1.03), BMI (OR = 1.08), SBP (OR = 1.00), DBP (OR = 1.01), FPG (OR = 5.85), TG (OR = 1.21), HDL-C (OR = 0.67), ALT (OR = 1.00), Scr (OR = 0.98), and a family history of diabetes (OR = 1.78) remained significantly associated with the risk of IFG (all P < 0.05). Here, GPT is linked to diabetes mellitus.