Percentage of Patients on Denver Health Asthma Registry with Spirometry or Pulmonary Function Tests (PFTs) from April 2016 to November 2020
| Persistent Asthma | Intermittent Asthma | |
|---|---|---|
| Spirometry | 14% (391/ 2791) | 8% (622/7408) |
| PFTs | 11% (318/ 2791) | 8% (563/7408) |