Table 1

Characteristics of participating children at entry to the study

No%
Symptoms in past 12 months
 Episodes of wheeze
  1–55649
  6–101917
  >102623
 Breathlessness due to wheeze3329
 Sleep disturbed by cough more than once per week3127
Current treatment
 None87
 β2 agonist + inhaled corticosteroid7768
 β2 agonist + sodium cromoglycate109
 β2 agonist only1917
Atopic status
 Positive skin prick test to one or more of house dust mite, grass pollen or cat7263