Skip to main content

Table 1 Receiver-operating characteristic (ROC) curve analysis for discrimination between cases and controls using the olfactory bulb volume, FA value, or ADC value

From: Diffusion tensor imaging: a smart move to olfactory pathway imaging; comparative study of chronic sinonasal polyposis patients and normal control

  ROC parameters
AUC p value J index Cutoff criterion Sensitivity (%) Specificity (%)
Value 95% C
OB/T volumetry 0.891† 0.779–0.958 <.0001 0.75 ≤ 0.054 cm3 78.6 96.4
FA value 0.683 0.545–0.801 0.0124 0.3929 ≤ 0.357 57.1 82.1
ADC value 0.708 0.571–0.822 0.0039 0.429 ≥ 1.417 (× 10-3 mm2/s) 46.4 96.4
  1. Versus AUC = 0.5 (DeLong method)
  2. AUC area under the ROC curve
  3. †Statistically significant difference versus FA value (p value = 0.0008) and ADC value (p value = 0.0131; DeLong method)