GPT and prediabetes syndrome: Fourth, our results were tested for robustness through sensitivity analyses (the AST/ALT ratio transformation, employing a GAM to put the continuity covariate into the equation as a curve, estimating E-values to examine the potential for unmeasured confounders, subgroup analysis, and reassessing the relationship between AST/ALT ratio and prediabetes after excluding participants with BMI≥24kg/m2, age≥60 years or drinker) to ensure their reliability.