Fig. 4
From: Auto-antibodies against carbonyl-modified vimentin in COPD: potential role as a biomarker
ROC analysis plots of specificity versus sensitivity for IgM and IgG antibodies against carbonyl-modified vimentin. Panels A and B: ROC analysis for IgM and IgG antibodies, respectively, in control non-smokers and COPD subjects. Panels C and D: ROC analysis for IgM and IgG antibodies, respectively, in non-smokers, smokers and COPD subjects