Parameters on Esophageal pH-Impedance Monitoring That Predict Outcomes of Patients With Gastroesophageal Reflux Disease  Amit Patel, Gregory S. Sayuk, C. Prakash Gyawali  Clinical Gastroenterology and Hepatology  Volume 13, Issue 5, Pages 884-891 (May 2015) DOI: 10.1016/j.cgh.2014.08.029 Copyright © 2015 AGA Institute Terms and Conditions

Figure 1 Improvement in symptom burden, as measured by change in DSI and GSS (*P < .05). Clinical Gastroenterology and Hepatology 2015 13, 884-891DOI: (10.1016/j.cgh.2014.08.029) Copyright © 2015 AGA Institute Terms and Conditions

Figure 2 Independent predictors of symptom improvement after management of reflux disease. (A) Prediction of linear change is shown as risk ratios and 95% confidence intervals, values not crossing the zero axis are significant. *P = .027 for DSI and P = .002 for GSS; **P = .026 for GSS. (B) Prediction of 50% or more improvement is shown as odds ratios and 95% confidence intervals, values not crossing the value of 1 are significant. *P = .014, **P = .05. In both instances, abnormal AET independently predicted symptom response after antireflux therapy; impedance-SAP complemented prediction, especially when GSS was used as the outcome measure. Clinical Gastroenterology and Hepatology 2015 13, 884-891DOI: (10.1016/j.cgh.2014.08.029) Copyright © 2015 AGA Institute Terms and Conditions