Data for AST006

The percentage of patients with asthma on the register from 1 April 2020 with either: 1. a record of spirometry and one other objective test (FeNOor reversibility or variability) between 3 months before or 6 months after diagnosis; or 2. If newly registered in the preceding 12 months with a diagnosis of asthma recorded on or after 1 April 2020 but no record of objective tests being performed at the date of registration, with a record of spirometry and one other objective test (FeNO or reversibility or variability) recorded within 6 months of registration.