Table 2 Bayesian Posterior Probabilities that the Prevalence of Pathologic Esophageal Reflux During PPI Treatment is Greater than the Prevalence of False-Positive Values for Pathologic Integrated Esophageal Acidity and Time Esophageal pH < 4.
Probability that Observed Prevalence of Pathologic Esophageal Reflux is Greater than Prevalence of False-Positive Values
Bayesian posterior probabilities were calculated using the values for the prevalence of false-positive values given in Table 1, the combined prevalence of pathologic esophageal reflux calculated from the index and 3rd studies, and a flat prior probability . The calculations were for values of prevalence from 0 to 1.0 in steps of 0.05. The flat prior probability considered all prevalence values from 0 to 1.0 to be equally probable.