Abstract
To identify if pulmonary rehabilitation can achieve a clinically significant alleviation in the level of depression among chronic obstructive pulmonary disease (COPD) patients older than 70 years. Methods: We conducted a retrospective secondary analysis of the patients' electronic records from a major pulmonary rehabilitation center in Cleveland, OH, United States between 2010 and 2014. Profiles of 105 participants who had completed more than 6 pulmonary rehabilitation sessions and were older than 70 years at the time of enrollment in the program were included. The Beck Depression Inventory scores at the baseline and the end of the pulmonary rehabilitation sessions were compared. Results: There was a statistically and clinically significant reduction in mean scores of depression from the baseline to the end of pulmonary rehabilitation: mean±SD: 104±5.6; p=0.00. The mean±SD depression score at the end was 9±4.3 compared with the baseline 17±7.8. Seventy-seven (73%) participants showed clinically significant improvement in depression; however, 20 participants (27%) had no clinically significant improvement, and 8 (8%) had worse depression at the end of pulmonary rehabilitation. Participants with higher depression scores at the baseline were 1.3 times more likely to achieve clinically significant alleviation in depression at the end of rehabilitation (odds ratio = 1.3, p=0.00). Conclusion: Pulmonary rehabilitation induced clinically significant alleviation in depression among participants with COPD aged over 70 years.