From: Time esophageal pH < 4 overestimates the prevalence of pathologic esophageal reflux in subjects with gastroesophageal reflux disease treated with proton pump inhibitors
Period
Integrated Esophageal Acidity
Time Esophageal pH < 4
Probability that Observed Prevalence of Pathologic Esophageal Reflux is Greater than Prevalence of False-Positive Values
24-hour
0.139
0.985
Nocturnal
0.066
0.999