GPT and diabetes mellitus: In the EPIC-NL case-cohort study, the multivariable-adjusted HRs (95%CI) for the risk of diabetes were 1.49 (1.37–1.61), 1.22 (1.09–1.37), 0.97 (0.81–1.17) and 0.34 (0.21–0.54) per doubling concentrations of GGT, ALT, AST and albumin, respectively.