Prevalence of gastroesophageal reflux disease in children with extraesophageal manifestations using combined-video, multichannel intraluminal impedance-pH study

Figure 1 Recruitment of children with respiratory symptoms suggestive of gastroesophageal reflux disease. EGD: Esophagogastroduodenoscopy; GERD: Gastroesophageal reflux disease; MII-Ph: multichannel intraluminal impedance and pH.

Figure 2 Area under the receiver operating characteristic curve of the novel parameters to diagnose extraesophageal gastroesophageal reflux disease. MNBI: Mean nocturnal baseline impedance; ROC: Receiver operating characteristic curve; GERD: Gastroesophageal reflux disease.