GPT and type 2 diabetes mellitus: After correcting for age, sex, the use of metformin, and DD, both serum ALT and γ-GT levels were significantly higher in the T2DM patients with MAFLD compared with those without MAFLD (serum ALT levels: 26 (18-40) vs. 16 (12-24) U/L; serum γ-GT levels: 30 (21-48) vs. 20 (15-31) U/L respectively; all p<0.001) (Figures 3A, C).