Fig. 2
From: Auto-antibodies against carbonyl-modified vimentin in COPD: potential role as a biomarker
Scatter plots displaying the lack of correlation between antibody titre for IgG (panels A and C) or IgM (panels B and D) versus lung function (panels A and B) or smoking pack years (panels C and D) in subjects diagnosed with COPD. Linear regression analysis was performed using GraphPad Prism 6.07 software with the slope found to be not significantly different from zero (p = 0.14, 0.96, 0.71, 0.74 for panels A, B, C and D respectively)