Key Message
In a cohort study involving 118,915 Taiwanese participants in a paid health check-up program, approximately one-third met both NAFLD (non-alcoholic fatty liver disease) and MAFLD (metabolic dysfunction-associated fatty liver disease) criteria. All-cause mortality associated with NAFLD and/or MAFLD correlated with cardiometabolic factors, though the risk attenuated following multivariable adjustment. A high fibrosis-4 index score, suggestive of liver fibrosis, was predictive of increased mortality risk in FLD (fatty liver disease) cases.