Recruitment is taking place at 15 centres across Scotland. Inclusion criteria are:
- Asthma diagnosed by a consultant paediatrician with a special interest in asthma/tertiary respiratory paediatrician and the child is aged 2-16 years OR asthma diagnosed by a primary care physician and the child is aged 5-16 years.
- Absence of other serious respiratory condition, e.g. cystic fibrosis
- Absence of gastrooesophageal reflux requiring treatment.
- Absence of neurological condition eg cerebral palsy