Table 3

Features which could be used to qualify the label ‘asthma’ in individual children

Major categorySuggested qualifying features
Possible causal factorsAtopy (personal or familial)
Viral infection
Prematurity or perinatal factors
Cigarette exposure
Other (for example possible air polution)
Disease pattern and severityEpisodes (+ severity and response to
Intercurrent symptoms ( + treatment and
  level of control)
Physiological features (by symptoms or appropriate measurements)Bronchodilator responsiveness
Bronchoconstrictor responsiveness (specify
Persistent functional impairment (that is
  ‘irreversible’ element)
Putative mechanisms (if known)Airway inflammation