Development and validation of a risk prediction model for gastroesophageal reflux disease: Gastroesophageal Reflux Disease Risk Scoring System

Figure 1 Receiver operating characteristic curve. A: Receiver operating characteristic (ROC) for discriminative accuracy of Gastroesophageal Reflux Disease Risk Scoring System (GRSS) modeled using continuous variables (approach 1); B: ROC curve for discriminative accuracy of GRSS modeled using categorical variables (approach 2).

Figure 2 Graphical illustration of the clinical implications of the Gastroesophageal Reflux Disease Risk Scoring System. GERD: Gastroesophageal reflux disease; GRSS: Gastroesophageal Reflux Disease Risk Scoring System.