Table 1.

A modification of the National Asthma Education and Prevention Program Expert Panel Report 3 classification of asthma severity on the basis of day and nighttime symptoms and subsequent treatment6, ^a

Classification	Day symptoms	Nighttime awakenings	Treatment
Intermittent	≤2 days/week	≤2 × /month	Short‐acting B‐agonists
Mild persistent	>2 days/week	3–4 × /month	Plus steroid inhalers
Moderate persistent	Daily	>1 × /week	Plus long‐acting B‐agonists
Severe persistent	All day	Nightly	Plus oral steroids

^aRegular treatment medications were used to classify patients.