Figure 5

(a) Correlation between serum periostin level and blood eosinophil percentage. N = 369; Pearson correlation test: *r = 0.28, P < 0.001. (b) Correlation between serum periostin level and tissue eosinophil infiltration. N = 204; Pearson correlation test: *r = 0.26, P < 0.001. HPF, high-power field.