Fig. 1
From: Periostin levels and eosinophilic inflammation in poorly-controlled asthma
Periostin levels in participants with non-eosinophilic asthma (NEA, open squares) and eosinophilic asthma (EA, open circles) assessed in 55 sputum samples (a) and 77 serum samples (b). The data was analysed using STATA 11 software. The horizontal line represents the median value for each group. A rank-sum test was performed with significance indicated when p < 0.05