Postbronchodilator FEV1/FVC \< 0.7 AND chronic respiratory symptom
Never smoker or \<5PY of smoking history AND Recurrent episodes of asthma symptoms (wheezing, dyspnea, chest tightness, cough) AND (either Positive BDR OR positive metacholine/mannitol/exercise provocation test)
COPD AND Asthma (regardless of smoking status)
You may not be if
\-
Asthma
\-
ACOS
\-
Clareo Health | Seoul National University Airway Registry
