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Table 5 Receiver operating characteristic (ROC) curve analysis for the prediction of severe interstitial lung disease

From: The qualitative and quantitative high-resolution computed tomography in the evaluation of interstitial lung diseases

Variable Optimal cutoff AUC P value Sensitivity Specificity PPV NPV Accuracy
TLV inspiratory ≤ 8988 0.653 0.111 69.44 71.43 86.2 47.6 70
MLD inspiratory > − 761 0.621 0.134 52.78 85.71 90.5 41.4 62
HAA inspiratory > 21.4 0.673 0.060 58.33 100 100 48.3 70
LAA inspiratory > 49.8 0.506 0.944 30.56 100 100 35.9 50
TLV expiratory ≤ 7159 0.548 0.625 44.44 85.71 88.9 37.5 56
MLD expiratory > − 781 0.690 0.011 83.33 50 81.1 53.8 74
HAA expiratory > 21.5 0.753 < 0.001 66.68 85.71 92.3 50 72
LAA expiratory > 48.2 0.585 0.325 33.33 100 100 36.8 52
  1. AUC area under the curve, PPV positive predictive value, NPV negative predictive value