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Table 3 Diagnostic accuracies of DRIS in discriminating lesions

From: Diagnostic accuracy of diffuse reflectance imaging for early detection of pre-malignant and malignant changes in the oral cavity: a feasibility study

Lesion types Diagnostic accuracies Area under the ROC curve
  Sensitivity (%) Specificity (%) PPV (%) NPV (%)  
Malignant Vs Normal 97 97 90 99 0.99
Pre-malignant Vs Normal 95 92 70 99 0.94
Pre-malignant Vs malignant 76 80 85 70 0.84
Malignant & Pre-malignant Vs Normal 92 95 90 96 0.97
  1. PPV=positive predictive value, NPV=negative predictive value and ROC=receiver operator characteristics.