Table 1

 Summary of eligible and included participants in the study

Cohort 1Cohort 2Cohort 3
*Eligible subjects were aged 2–18 years of age presenting to the RCH emergency department with acute asthma, who had an English speaking parent/carer, and who were able to complete the questionnaires.
    Refused at onset/did not complete questionnaire 1 or 1A153163274
    Did not completed questionnaires 2 and 311011666
Total no. analysed374363377