Because of the trial design,we were unable to
determine the critical changes in behaviour by
the parent or child which led to improved outcome.
For instance, did increased confidence
lead to more prompt introduction of rescue
treatment, such as â2 agonists or oral corticosteroid
courses? It would be important to
monitor this aspect of care in future studies
because the benefit of reduced admissions
must be set against the potential harm of
excessive corticosteroid use.