Development and validation of a simple index system to predict nonalcoholic fatty liver disease.

Background/aims: Abdominal ultrasonography is useful for the detection and diagnosis of nonalcoholic fatty liver disease (NAFLD). The aims of this study were to establish a predictive model for the selection of subjects for abdominal ultrasonography for the diagnosis of NAFLD and to assess validity of the model.

Methods: The subjects included 901 people who visited the health examination center of the Busan Medical Center.