Figure 1
From: Stage-dependent association of BDNF and TGF-β1with lung function in stable COPD
Platelet counts and serum levels of platelet-derived mediators. The Figure shows platelet counts (A) and serum levels (ng/ml) of BDNF (B), TGF-β1 (C) and Serotonin (D) in different stages of COPD (GOLD II, GOLD III, GOLD IV) and in controls. The median (line within the box), interquartile range (edges of the box), the range of values that are not outliers (vertical lines) and outliers (cases more distant than 1.5 interquartile ranges from the upper or lower quartile: dots) are shown. Asterisks mark significant differences between the groups. Probability values of p<0.05 were regarded as statistically significant.