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The relationship between cough-specific quality of life and abdominal muscle endurance, fatigue, and depression in patients with COPD

Authors Arikan H, Savci S, Calik-Kutukcu E, Vardar-Yagli N, Saglam M, Inal-Ince D, Coplu L

Received 20 May 2015

Accepted for publication 17 July 2015

Published 7 September 2015 Volume 2015:10(1) Pages 1829—1835


Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Professor Hsiao-Chi Chuang

Peer reviewer comments 4

Editor who approved publication: Dr Richard Russell

Hulya Arikan,1 Sema Savci,2 Ebru Calik-Kutukcu,1 Naciye Vardar-Yagli,1 Melda Saglam,1 Deniz Inal-Ince,1 Lutfi Coplu3

1Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Hacettepe University, Ankara, Turkey; 2School of Physiotherapy and Rehabilitation, Dokuz Eylul University, Izmir, Turkey; 3Department of Chest Medicine, Faculty of Medicine, Hacettepe University, Ankara, Turkey

Background: Cough is a prevalent symptom that impacts quality of life in COPD. The aim of this study was to assess the relationship between cough-specific quality of life, abdominal muscle endurance, fatigue, and depression in stable patients with COPD.
Methods: Twenty-eight patients with COPD (mean age 60.6±8.7 years) referred for pulmonary rehabilitation participated in this cross-sectional study. Sit-ups test was used for assessing abdominal muscle endurance. Leicester Cough Questionnare (LCQ) was used to evaluate symptom-specific quality of life. Fatigue perception was evaluated with Fatigue Impact Scale (FIS). Beck Depression Inventory (BDI) was used for assessing depression level.
Results: The LCQ total score was significantly associated with number of sit-ups; BDI score; FIS total; physical, cognitive, and psychosocial scores (P<0.05). Scores of the LCQ physical, social, and psychological domains were also significantly related with number of sit-ups, FIS total score, and BDI score (P<0.05). FIS total score and number of sit-ups explained 58% of the variance in LCQ total score (r=0.76, r2=0.577, F(2–20)=12.296, P<0.001).
Conclusion: Chronic cough may adversely affect performance in daily life due to its negative effect on fatigue and decrease abdominal muscle endurance in patients with COPD. Decreased cough-related quality of life is related with increased level of depression in COPD patients. Effects of increased abdominal muscle endurance and decreased fatigue in COPD patients with chronic cough need further investigation.

Keywords: cough, quality of life, depression, fatigue, chronic obstructive pulmonary disease

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