The Relationship between COPD Assessment Test (CAT) Scores and Severity of Airflow Obstruction in Stable COPD Patients

摘要

BackgroundCOPD is a major cause of morbidity in smokers. The COPD assessment test (CAT) is a validated test for evaluation of COPD impact on health status. CAT is not a diagnostic test and pulmonary function test (PFT) still remains the most important diagnostic test. However, its predictive value for evaluation of disease impact is weak. The purpose of this study was to determine the relationship between CAT score and PFT in COPD patients.