GPT and diabetes mellitus: Elevated ALT, GGT, AST and ALP were related with diabetes in all crude and adjusted models (adjusted ORs: 1.81, 95%CI 1.51–2.17; 1.75, 95%CI 1.32–2.32; 1.77, 95%CI 1.50–2.08; 1.60, 95%CI 1.35–1.90 respectively).