Fig. 1. The prevalence of gastroesophageal reflux disease in Asian population-based study. Gastroesophageal reflux disease (GERD) is defined as having heartburn or acid regurgitation at least weekly. *Study conducted in subjects with medical check-up, **GERD, retrosternal burning sensation or acid regurgitation at least once a month.
© J Neurogastroenterol Motil
