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. 2015 Aug 16;10:63–73. doi: 10.4137/BMI.S28209

Figure 3.

Figure 3

Evaluation of ILDIndex as a marker for interstitial lung disease (ILD) in rheumatoid arthritis (RA) patients. (A) Distribution of the ILDIndex. Horizontal bars denote the means. The horizontal dotted line represents an optimized cut-off level (ILDIndex = 0.652, with specificity and sensitivity of 0.882 and 1.000, respectively). ILD(+)RA: RA with ILD, ILD(−)RA: RA without ILD. (b) The receiver operating characteristic (ROC) curve using the ILDIndex as markers for ILD in RA. The area under the curve (AUC) value of the ROC curve for ILDIndex is 0.960.