Skip to main content
. Author manuscript; available in PMC: 2013 Nov 21.
Published in final edited form as: Am J Gastroenterol. 2009 Nov 17;105(5):10.1038/ajg.2009.646. doi: 10.1038/ajg.2009.646

Figure 1.

Figure 1

Prevalence of indicators of GERD on ambulatory pH testing off antisecretory therapy in GERD patients. Although any one GERD indicator was noted in over 60% of subjects, a positive GPE in conjunction with abnormal AET was only noted in 17.2%. AET, acid exposure time; GERD, gastroesophageal reflux disease; GPE, symptom association probability measured as the Ghillibert probability estimate; SI, symptom index.