Figure 4:

The ROC/AUC plots of different measures of DSPN as compared to composite NC score #2 of sensitive CVs and DLs of limb nerves. Individual sensitive MNCVs, as expected, have large AUCs. NIS and composite NC score #4 had intermediate AUC values and fibular CMAPs and sural SNAPs had lower values. This data indicates that composite score #2 of CVs and DLs are sensitive measures of DSPN especially useful for diagnosis. Composite score #4 of CMAP/SNAP amplitudes are less sensitive for the diagnosis of DSPN than composite score #2 but are valid measures of staged severity proposed in this report.