Fig. 4

ROC curve analysis to determine the cutoff value of the WHtR and WHR for predicting NAFLD. The cutoff value of the WHtR for predicting NAFLD is 0.469 (sensitivity: 70.1%; specificity: 76.9%). The area under the ROC curve (AUC) of the WHtR is 0.80 and of the WHR is 0.755; P = 0.010). NAFLD, nonalcoholic fatty liver disease; ROC, receiver operating characteristic; WHtR, waist-to-height ratio; WHR, waist-to-hip ratio