Figure 3From: Longitudinal measurement of airway inflammation over one year in children and adults with intermittent asthmaCorrelation between the percentage of sputum eosinophils and the level of exhaled NO (FeNO) for visit 1, 3 and 5, separately for pediatric and adult patients. Patients with always low (A, D), variable (B, E) and persistently high (C, F) percentages of sputum eosinophils.Back to article page