Table 3. Asthma phenotypes.

Category	Phenotypes
Triggers	Atopic/non-atopic, aspirin-exacerbated, infection, exercise, occupational, smoking
Patient characteristics	Early/late onset, sex, peri-menopausal onset, race, obesity
Clinical presentation	Aggravated by exercise, corticosteroid dependent/resistant, low lung function, less reversible airway obstruction, frequent exacerbation