GPT and metabolic syndrome: As the ALT/AST ratio was classified by quartiles (Q1-Q4), there were graded associations for higher ALT/AST quartiles and higher incidences of MetS (from Q1 (reference), +24% risk in Q2, +59% risk in Q3, to +72% risk in Q4) (HRs: 1.24 (0.93-1.66), 1.59 (1.20-2.10), 1.72 (1.30-2.26), respectively) in Model 1.