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. Author manuscript; available in PMC: 2012 Dec 1.
Published in final edited form as: Neurogastroenterol Motil. 2011 Sep 19;23(12):1066–1072. doi: 10.1111/j.1365-2982.2011.01787.x

Table 3.

Receiver Operating Characteristic (ROC) Analysis Identifying Optimal Performance Characteristics Segregating Acid Sensitive from GERD and Control Groups

Pressure Volume Ratio Segment 3:2 Sensitivity Specificity
1.45 76.2 100
1.5 75 96.2
1.6 78.9 96.3
1.7 77.8 92.9
1.8 76.5 89.7
1.9 86.7 90.3
2.0 100 88.2