A systematic review of the association between dietary patterns and health-related quality of life

Abstract Background Health related quality of life (HRQOL) is a potent indicator of individual’s happiness and life satisfaction. The way in which the HRQOL is affected by the diet is a topic of constant interest and debate among researchers. Evaluating the association between single nutrients or fo...

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Main Authors: Mahdi Vajdi, Mahdieh Abbasalizad Farhangi
Format: Article
Language:English
Published: BMC 2020-10-01
Series:Health and Quality of Life Outcomes
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12955-020-01581-z
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author Mahdi Vajdi
Mahdieh Abbasalizad Farhangi
author_facet Mahdi Vajdi
Mahdieh Abbasalizad Farhangi
author_sort Mahdi Vajdi
collection DOAJ
description Abstract Background Health related quality of life (HRQOL) is a potent indicator of individual’s happiness and life satisfaction. The way in which the HRQOL is affected by the diet is a topic of constant interest and debate among researchers. Evaluating the association between single nutrients or foods and HRQOL fails to take into consideration the complex interactions between nutrients. Also, the findings from previous investigations on the relationship between dietary patterns and HRQOL have been inconsistent. Therefore, our aim was to assess the existing evidence regarding the relationship between the dietary patterns and HRQOL by conducting a systematic review. Methods A literature search was conducted in PubMed, Scopus, Web of Sciences and Google scholar databases from inception to March 2020, to identify studies that investigated associations between the dietary patterns (regardless of methods used to define dietary patterns) and HRQOL domains. Two researchers independently checked titles and abstracts, evaluated full-text studies, extracted data, and appraised their quality using the Newcastle–Ottawa Scale (NOS). Results Thirteen studies (four longitudinal, and nine cross-sectional studies), with a total of 43,445 subjects, were included. Of the studies included in this review, eight studies evaluated the association between "Mediterranean" dietary patterns (MDP) and HRQOL, while five studies examined the association between different dietary patterns ("Healthy", "Unhealthy", "Western", "Fruit and vegetable", "Bread and butter" and etc.) and HRQOL. Excluding three studies which showed no significant association, healthy dietary patterns such as MDP, "Healthy" and "Fruit and vegetable" dietary patterns were associated with better HRQOL in physical and mental components scores. The quality assessment of included studies according to NOS criteria were ranged between medium to high quality. Conclusion According to the current evidence, "Healthy" dietary patterns and “Mediterranean” dietary patterns are associated with better dimension scores of HRQOL in both physical and mental summaries. While, unhealthy dietary patterns and "Western" dietary patterns are associated with lower scores of HRQOL. Further longitudinal studies are required to clarify the association between dietary patterns and HRQOL
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spelling doaj.art-9e1eeb82cfd644fe9d91f231835290212022-12-21T23:56:20ZengBMCHealth and Quality of Life Outcomes1477-75252020-10-0118111510.1186/s12955-020-01581-zA systematic review of the association between dietary patterns and health-related quality of lifeMahdi Vajdi0Mahdieh Abbasalizad Farhangi1Research Center for Evidence Based Medicine, Health Management and Safety Promotion Research Institute, Tabriz University of Medical SciencesDrug Applied Research Center, Tabriz University of Medical SciencesAbstract Background Health related quality of life (HRQOL) is a potent indicator of individual’s happiness and life satisfaction. The way in which the HRQOL is affected by the diet is a topic of constant interest and debate among researchers. Evaluating the association between single nutrients or foods and HRQOL fails to take into consideration the complex interactions between nutrients. Also, the findings from previous investigations on the relationship between dietary patterns and HRQOL have been inconsistent. Therefore, our aim was to assess the existing evidence regarding the relationship between the dietary patterns and HRQOL by conducting a systematic review. Methods A literature search was conducted in PubMed, Scopus, Web of Sciences and Google scholar databases from inception to March 2020, to identify studies that investigated associations between the dietary patterns (regardless of methods used to define dietary patterns) and HRQOL domains. Two researchers independently checked titles and abstracts, evaluated full-text studies, extracted data, and appraised their quality using the Newcastle–Ottawa Scale (NOS). Results Thirteen studies (four longitudinal, and nine cross-sectional studies), with a total of 43,445 subjects, were included. Of the studies included in this review, eight studies evaluated the association between "Mediterranean" dietary patterns (MDP) and HRQOL, while five studies examined the association between different dietary patterns ("Healthy", "Unhealthy", "Western", "Fruit and vegetable", "Bread and butter" and etc.) and HRQOL. Excluding three studies which showed no significant association, healthy dietary patterns such as MDP, "Healthy" and "Fruit and vegetable" dietary patterns were associated with better HRQOL in physical and mental components scores. The quality assessment of included studies according to NOS criteria were ranged between medium to high quality. Conclusion According to the current evidence, "Healthy" dietary patterns and “Mediterranean” dietary patterns are associated with better dimension scores of HRQOL in both physical and mental summaries. While, unhealthy dietary patterns and "Western" dietary patterns are associated with lower scores of HRQOL. Further longitudinal studies are required to clarify the association between dietary patterns and HRQOLhttp://link.springer.com/article/10.1186/s12955-020-01581-zHealth-related quality of lifeDietary patternsNutritionSystematic review
spellingShingle Mahdi Vajdi
Mahdieh Abbasalizad Farhangi
A systematic review of the association between dietary patterns and health-related quality of life
Health and Quality of Life Outcomes
Health-related quality of life
Dietary patterns
Nutrition
Systematic review
title A systematic review of the association between dietary patterns and health-related quality of life
title_full A systematic review of the association between dietary patterns and health-related quality of life
title_fullStr A systematic review of the association between dietary patterns and health-related quality of life
title_full_unstemmed A systematic review of the association between dietary patterns and health-related quality of life
title_short A systematic review of the association between dietary patterns and health-related quality of life
title_sort systematic review of the association between dietary patterns and health related quality of life
topic Health-related quality of life
Dietary patterns
Nutrition
Systematic review
url http://link.springer.com/article/10.1186/s12955-020-01581-z
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