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Fig. 2 | Respiratory Research

Fig. 2

From: Type IV collagen turnover is predictive of mortality in COPD: a comparison to fibrinogen in a prospective analysis of the ECLIPSE cohort

Fig. 2

Plasma C4Ma3 (a), TUM (b) and fibrinogen (c) levels in matched never-smoking controls (NSC), smoking controls (SC), and COPD subjects. Each group n = 95. Data are shown as Tukey box-and-whiskers plot with a line indicating median, the box indicating the 25th and 75th percentiles (the interquartile range, IQR), and whiskers indicating 1.5 times the IQR. Data points outside this limit are shown by individual data points. Data were analyzed by Kruskal-Wallis test using Dunn’s multiple comparison. Asterisks indicate statistical significance: **p < 0.01, and ****p < 0.0001

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