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Nutritional status, dietary intake, and health-related quality of life in outpatients with COPD

Authors Nguyen HT, Collins PF, Pavey TG, Nguyen NV, Pham TD, Gallegos DL

Received 24 July 2018

Accepted for publication 28 November 2018

Published 14 January 2019 Volume 2019:14 Pages 215—226


Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Ms Justinn Cochran

Peer reviewer comments 2

Editor who approved publication: Dr Richard Russell

Ha Thanh Nguyen,1,2 Peter F Collins,1,3 Toby G Pavey,1 Nhung Viet Nguyen,4 Tuong Duy Pham,2 Danielle L Gallegos1

1School of Exercise and Nutrition Sciences, Faculty of Health Queensland University of Technology, Kelvin Grove, QLD, Australia; 2Department of Nutrition and Food Safety, Institute for Preventive Medicine and Public Health, Hanoi Medical University, Hanoi, Vietnam; 3Department of Nutrition and Dietetics, Princess Alexandra Hospital, Brisbane, Australia; 4National Lung Hospital, Hanoi, Vietnam

Background: Malnutrition is common in patients with COPD; however, little is known about its impacts on health-related quality of life (QoL) among patients with COPD. This study aimed to explore the nutritional status and dietary intake among outpatients with COPD in Vietnam and its possible associations with QoL.
Methods: A cross-sectional study was carried out in COPD outpatients visiting the COPD management unit at the National Lung Hospital, Hanoi, Vietnam between May 2017 and July 2017. Consecutive outpatients with a confirmed diagnosis of COPD were recruited with written inform consent. The nutritional status of participants was assessed using Subjective Global Assessment (SGA), and dietary intake via a 24-hour recall interview. The St George Respiratory Questionnaire (SGRQ) for COPD was used to investigate the participants’ QoL. Sociodemographic and clinical data were extracted from hospital records.
Results: Of 168 COPD outpatients involved in the study, three-quarters (74.4%) were diagnosed as malnourished (SGA B/C) and 81.5% reported unintentional weight loss. Most of the patients did not meet their estimated energy and protein requirements (85.7% and 89.9%, respectively). Malnutrition was significantly associated with disease severity (P=0.039) and ratio of protein intake to estimated requirement (P=0.005). QoL was low for all levels of malnutrition or disease severity, with well-nourished participants and those with less disease severity having better QoL (P=0.006 and P<0.001, respectively). With an extra meal per day, the odds of having malnutrition decreased 5.6 times (P<0.05) and the total SGRQ reduced 3.61 scores (P<0.05) indicating a better QoL.
Conclusion: Malnutrition and weight loss are prevalent among COPD outpatients. Most of the patients had inadequate dietary intake and low QoL. Nutrition counselling including increasing the number of meals per day with a focus on energy- and protein-rich foods may help improving nutritional status and QoL of patients with COPD in Vietnam.

Keywords: body weight, energy intake, protein intake, SGRQ, COPD, Vietnam

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