Table 3: Information on the ROC curves produced.

Properties δPSSD
n = 38
δVibrometer
n = 22
External Criterion Failed to sufficiently resolve
symptoms – based on δSSS = 0.5
Cut point for CID 0.15 Undefined
Area under the curve 0.46 (0.27-0.64) n/a
Sensitivity 0.60 n/a
Specificity 0.39 n/a

ROC = receiver operating characteristic. CID = minimally clinically important difference. ΔSSS = change in SSS scores. ΔPSSD = change in PSSD scores. ΔVibrometer = change in Vibrometer scores.