Fig. 1. Prevalence of symptoms and distribution among different phenotypes. NERD, non-erosive reflux disease; RH, reflux hypersensitivity; FH, functional heartburn; nl-RI-NOS, normal reflux index not otherwise specified; PPI, proton pump inhibitor; MII-pH, multichannel intraluminal impedance and pH monitoring.
© J Neurogastroenterol Motil
