Figure 2

Percentage of sputum eosinophils over the study period V1 – V5 separately for pediatric and adult patients and for individual patients with always low (A, D), variable (B, E) and persistently high (C, F) percentages of sputum eosinophils. The cut-off value of 2.5% (shaded area) is displayed. Sputum eosinophils = 0% were set to 0.05 to allow a logarithmic scaling.