Skip to main content
. Author manuscript; available in PMC: 2017 Oct 1.
Published in final edited form as: Dis Esophagus. 2015 Jul 14;29(7):820–828. doi: 10.1111/dote.12389

Table 2.

EGJ-CI in relationship to acid exposure and EGJ metrics

EGJ-CI/SRC
 EGJ-CI/CRC
Parameters ≤121.8 mmHg.cm.s n = 92 >121.8 mmHg.cm.s n = 96 ≤39.3 mmHg.cm n = 86 >39.3 mmHg.cm n = 102
Acid exposure
    Abnormal AET (%) 55 (59.1%) 35 (36.8%) 52 (60.5%) 38 (37.3%)
    Mean total AET 6.6% 4.1% 6.8% 4.1%
    Mean upright AET 6.3% 5.2% 6.5% 4.8%
    Mean supine AET 7.1% 2.6% 7.3% 2.7%
    DeMeester score 24.0 ± 2.7 14.3 ± 1.6 24.9 ± 2.7 13.9 ± 1.6
EGJ parameters
    Mean basal LES pressure (mmHg) 12.8 ± 0.9 29.9 ± 1.1 12.1 ± 0.9 29.9 ± 1.2
    Mean end-expiratory LES pressure (mmHg) 5.4 ± 0.7 17.7 ± 1.0 5.1 ± 0.7 17.2 ± 1.0
    Hiatus hernia† (%) 36 (39.1%) 8 (8.3%) 36 (41.9%) 8 (7.8%)

P < 0.05 for comparisons between low and normal values for EGJ-CI/SRC and EGJ-CI/CRC in all instances except mean upright AET for EGJ-CI/SRC where P = 0.2.

†

Type III EGJ.

AET, acid exposure time; CRC, corrected for respiratory cycle; EGJ-CI, esophagogastric junction contractile integral; SRC, single respiratory cycle.