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Correlation between esophagogastric junction contractile integral (EGJ-CI) and conventional lower esophageal sphincter (LES) metrics. Both EGJ-CI calculated for a single respiratory cycle (SRC) and corrected for respiration (CRC) correlated very well with mean basal LES pressure (Pearson's r = 0.73–0.74, P < 0.0001) and end-expiratory LES pressure (Pearson's r = 0.66–0.67, P < 0.0001) indicating that the EGJ-CI can adequately replace conventional metrics.
