Skip to main content
Fig. 4 | Respiratory Research

Fig. 4

From: Subtyping preserved ratio impaired spirometry (PRISm) by using quantitative HRCT imaging characteristics

Fig. 4

A ROC curve of the nomogram and parameters to predict PRISm from normal. The AUC value of the model was 0.786 (sensitivity 82.35%, specificity 65.96%). B ROC curve of PRMEmph to predict mild to moderate COPD from PRISm. The cutoff criterion value was 4%. This indicated that when the proportion of emphysema in PRM was 4%, it was helpful to distinguish the Mild to Moderate COPD group from the PRISm Group. The sensitivity and specificity of this index were 89.58% and 68.63%, which had good significance

Back to article page