Fig. 1

Quality of life and physical function in non-depressed and depressed COPD patients. A COPD assessment test measuring impact of COPD on patient’s health. B Total score of St. George Questionnaire including Symptoms, Activities, and Impacts. C Physical Activity Scale for the Elderly (PASE). D Total distance traveled during 6-Min Walk Test. Mean ± 95% CI by ANCOVA with age and BMI as covariates