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eISSN 2005-1212

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Fig. 3. The receiver operating characteristic (ROC) curve of the proton pump inhibitor (PPI) test for gastroesophageal reflux disease (GERD)-related noncardiac chest pain during the first week (A) and the second week (B). The reduction in chest pain corresponded to 0.78 in the area under ROC with an accuracy of 77.1% during the second week of the PPI test. Additionally, there is a significant difference between the areas under the ROC curves for the first and second weeks of the PPI test (p<0.05).
Gut Liver 2012;6:1~9 https://doi.org/10.5009/gnl.2012.6.1.1
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