Fig. 6. Correlations between supragastric belching (SGB) and all reflux episodes, as determined by impedance pH monitoring. In patients with belching disorder (BD), total reflux episodes were not correlated with the number of supragastric belches (A). However, the number of all reflux episodes was positively correlated with the number of supragastric belches (adjusted R2 = 0.572, P < 0.05) (B).
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