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Figure 5: Receiver Operating Characteristic (ROC) curve of the non-invasive condom pressure measurement (dot-dashed line, with area under the curve (AUC)=0.98). The sensitivity of the test in discriminating obstructed patients from non-obstructed and equivocal patients was plotted as a function of 1-specificity. The AUC reflects the percentage of randomly drawn pairs of patients (one from the obstructed group, one from the not obstructed group) that is correctly diagnosed by the test, and is a measure for the accuracy of the test. The dotted line (with AUC=0.79) is the ROC curve for using the maximum flow rate Qmax for diagnosing obstruction in the same group of patients

Figure 5: Receiver Operating Characteristic (ROC) curve of the non-invasive condom pressure measurement (dot-dashed line, with area under the curve (AUC)=0.98). The sensitivity of the test in discriminating obstructed patients from non-obstructed and equivocal patients was plotted as a function of 1-specificity. The AUC reflects the percentage of randomly drawn pairs of patients (one from the obstructed group, one from the not obstructed group) that is correctly diagnosed by the test, and is a measure for the accuracy of the test. The dotted line (with AUC=0.79) is the ROC curve for using the maximum flow rate Qmax for diagnosing obstruction in the same group of patients