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. 2021 Apr 30;27(2):231–239. doi: 10.5056/jnm20114

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© 2021 The Korean Society of Neurogastroenterology and Motility

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Distribution of the supragastric belching types. Most common belching was isolated belching (IB) in belching disorder (BD), and during belching in gastroesophageal reflux disease (GERD) group. Gastroesophageal reflux related supragastric belching (excluding IB) was significantly higher in GERD group than BD group (P < 0.005). Total preceding belching (PB) before and during reflux events was also significantly higher in GERD group than BD group (P < 0.05). These finding suggest that supragastric belching may have a role in GERD. FB, following belching; DIB, during-isolated belching; DPB, during-preceding belching. Percentage was a mean value of each individual.