GPT and diabetes mellitus: The multivariate analysis showed that age (OR = 1.047), BMI (OR = 1.122), FPG (OR = 8.564), HDL-C (OR = 1.515), ALT (OR = 1.008), ever/current smoking (OR = 1.527), and family history of diabetes (OR = 1.902) were associated with incident diabetes (all P < 0.05).