Fig. 1

A Expression of serum microRNA in asthma patients and controls. B Expression of serum miRNA in the age-stratified groups of asthmatics and controls. Data are compared between asthmatics and controls by the Mann–Whitney test and between the age groups by Kruskal–Wallis and Dunn’s Multiple comparison test. The horizontal bar represents the median, box-25–75% percentile, whiskers-range of non-outliers. EA elderly asthmatics, nEA non-elderly asthmatics, EC elderly controls, nEC non-elderly controls