Metabolic markers and ALT cutoff level for diagnosing nonalcoholic fatty liver disease: a community-based cross-sectional study

Abstract
Untreated nonalcoholic fatty liver disease (NAFLD) may progress to liver cirrhosis or failure and is associated with the development of hepatocellular carcinoma, diabetes, and cardiovascular disease. It is therefore essential to diagnose and treat NAFLD at an early stage. To assist in this effort, this retrospective study explored the risk factors for NAFLD, and derived new surrogates, a revised alanine aminotransferase (ALT) cutoff level and a novel NAFLD index, to identify previously undiagnosed cases of NAFLD.