Fig. 1. Schematic presentation for the epidemiology of asthma in the elderly. Lines indicate the aged-related changes in the prevalence; gray line, childhood-onset asthma; blue line, airway hyperresponsiveness; and red line, late-onset adult asthma. Adult asthma prevalence was depicted based on previous publications.25,31.
AHR, airway hyperresponsiveness; SE-IgE, staphylococcal enterotoxin IgE.