Abstract

Objective: to investigate the correlation between forced expiratory volume in one second predicted (FEV1%predicted) and The COPD Assessment Test (CAT) in subjects with Chronic Obstructive Pulmonary Disease (COPD). Design: Sixty men (40-60 years old) with Chronic Obstructive Pulmonary Disease (COPD) were enrolled for this study. Seriousness of airflow obstruction was determined by standard spirometry. Then, the influence of COPD on health status was evaluated using CAT. We statistically compared the correlation between CAT score and FEV1%predicted. FEV1%predicted was measured by utilizing the spirometry, and CAT was performed. Results: There was a statistically significant negative relationship between CAT score results and FEV1%predicted (r = -0.39, p = 0.002). Conclusions: The relationship between CAT score and FEV1%predicted recommends that CAT is connected to severity of airflow limitation in stable COPD patients. The CAT can be utilized as a reliable scientific research instrument and can be utilized in clinical practice to study the disease state.