Wales Asthma Observatory
The Wales Asthma Observatory (WAO) is a platform for asthma research and surveillance.
It was developed to explore what is happening to patients with asthma in Wales and to examine this longitudinally in order to support improvements in the quality of treatment and care provided to patients and to also inform health service planning and clinical research.
The WAO includes a cumulative cohort of asthma patients covering most of Wales, totalling over 470,000 people with ever-diagnosed and...