Fig. 2

Omentin-1 levels according to PAD severity. On the box plots, central lines represent the median, the length of the box represents the interquartile range and the lines extend to minimum and maximum values. According to patients’ functional status, represented by the Leriche-Fontaine classification, lower levels of circulating omentin-1 in patients with more severe disease were detected (LF II vs LF III, *P < 0.05; LF III vs LF IV, *P < 0.05)