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Table 2 ROC curve analysis of conventional impedance standards

From: Optimization of impedance-measured reflux events in GORD utilizing acid exposure time

  1. ROC curve analysis of conventional multichannel intraluminal impedance compared to oesophageal acid exposure time standards. Sensitivity and specificity are derived from area under the curve analysis
  2. ╪ Elevated reflux event frequency defined by conventional standard [20]