Gastroenterology Research and Practice / 2017 / Article / Fig 1

Clinical Study

Comparison of Esophageal Function Tests in Chinese Patients with Functional Heartburn and Reflux Hypersensitivity

Figure 1

Receiver operating characteristic (ROC) curves for functional heartburn (FH) and reflux hypersensitivity (RH). On ROC analysis, the postreflux swallow-induced peristaltic wave index (the PSPW index), the mean nocturnal baseline impedance (MNBI), and the distal contractile integral (DCI) yielded areas under the curves of 0.728 (95% CI 0.661–0,796), 0.643 (95% CI 0.570–0.716), and 0.605 (95% CI 0.531–0.678), respectively, thus significantly distinguishing FH from RH.

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