Table 1.

Definitions of asthma phenotypes

Phenotype Label	Definition
Ever Asthma	Ever diagnosed with asthma
Current Asthma	Ever diagnosed & symptoms or asthma medication use in last 12 months
Early Onset Transient	Diagnosed before 3 yrs; not current at age 17 yrs
Early Onset Persistent	Diagnosed before 3 yrs; current at age 17 yrs
Child Onset Remittent	Diagnosed from 3–8 yrs; not current at age 17 yrs
Child Onset Persistent	Diagnosed from 3–8 yrs; current at age 17 yrs
Late Child Onset Remittent	Diagnosed after 8 yrs; not current at age 17 yrs
Late Child Onset Persistent	Diagnosed after 8 yrs; current at age 17 yrs