Figure 2

Mean and standard error of the doses of inhaled corticosteroid (fluticasone equivalents = μg) and long-acting β₂-agonist (pooled doses = μg) at each study visit over 12 weeks for subjects without bronchial hyperresponsiveness (BHR) to mannitol (n=9) and those with BHR (n=5) at the beginning of the study. *p<0.05, **p<0.01, ***p<0.001.