Table 1.
Asthma criteria (≥12 years of age) | COPD criteria (≥40 years of age)
|
||
---|---|---|---|
Spirometrya | Ever being told they had emphysema | Ever being told they had chronic bronchitis | |
Ever being told by a physician they have asthma, n (%) | 53 (17.7) | 88 (29.4) | 228 (76.3) |
Participants still have asthma, n (%) | 20 (6.7) | 76 (25.4) | 175 (58.5) |
Participants had an asthma attack in the past 12 months, n (%) | 8 (2.7) | 34 (11.4) | 104 (34.8) |
Notes: All COPD criteria and the asthma criterion “Ever being told by a physician they have asthma” are aligned with GINA and/or GOLD criteria for ACO.
Spirometry-defined COPD using the 2018 Global Initiative for GOLD clinical diagnosis standards.
Abbreviations: ACO, asthma–COPD overlap; GINA, Global Initiative for Asthma; GOLD, Global Initiative for Chronic Obstructive Lung Disease.