Fig. 5From: Identification of biomarkers by machine learning classifiers to assist diagnose rheumatoid arthritis-associated interstitial lung diseaseImportant biomarkers were selected from multiple analyses and ROC curves were plotted. The ROCs of age, KL-6, D-dimer, and CA19-9, and their combination were plotted to differentiate RA-ILD from RA-non-ILD. The ROC curve for the combination of age, KL-6, D-dimer, and CA19-9 exhibited an AUC of 0.928Back to article page