With an innovative and cost-effective approach, WAO has been developed using de-identified, linked, routinely collected asthma-related data in Wales. 

These data contain information on primary and secondary care delivered to asthma patients as well as demographic and socioeconomic data. 

Currently, WAO includes the following asthma-related variables:

  • asthma diagnosis date and age
  • asthma-related signs and symptoms
  • asthma patient monitoring events
  • asthma diagnostic tests
  • asthma severity
  • asthma attacks/exacerbations
  • asthma prescriptions
  • asthma-related referrals
  • asthma emergency visits
  • asthma hospitalisations (admission and discharge dates)

The WAO is hosted in the SAIL Databank at Swansea University