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Cross-National Comparisons of Cognitive and Physical Health in Older Adults Across China, Japan, and Korea: A Systematic Review

BACKGROUND: Cross-national studies are an emerging research area in public health. Specifically, cross-national health comparisons are important for understanding the factors driving the success or failure of public health policies. Therefore, this study systematically analyzed studies that compared...

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Autores principales: Nam, Sanghun, Pritchard, Kevin T., Bae, Suyeong, Hong, Ickpyo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8671655/
https://www.ncbi.nlm.nih.gov/pubmed/34898332
http://dx.doi.org/10.1177/00469580211062451
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author Nam, Sanghun
Pritchard, Kevin T.
Bae, Suyeong
Hong, Ickpyo
author_facet Nam, Sanghun
Pritchard, Kevin T.
Bae, Suyeong
Hong, Ickpyo
author_sort Nam, Sanghun
collection PubMed
description BACKGROUND: Cross-national studies are an emerging research area in public health. Specifically, cross-national health comparisons are important for understanding the factors driving the success or failure of public health policies. Therefore, this study systematically analyzed studies that compared health status (physical health and cognition) of the older adults using national panel data for three East Asian countries—China, Japan, and Korea. METHODS: Google Scholar and PubMed were used for the literature search. The search strategy targeted papers published between 2005 and 2020, yielding a total of 2690 papers, of which seven were selected for the review. The Center for Evidence-Based Medicine (CEBM) criteria was used to assess study design quality. The risk of bias for non-randomized studies (RoBANS) tool, a quality assessment tool developed in Korea to evaluate non-randomized interventional studies, measured risk of bias. RESULTS: Of the seven included papers, two studies performed cognitive comparisons, four studies performed physical health comparisons, and one study compared both cognition and physical health. The studies selected for this study by CEBM criteria included four prospective cohort studies (Level 2B) and three expert opinions without explicit critical appraisal (Level 5). Risk of bias using the RoBANS tool found a risk of confounding variables in four out of seven papers. Finally, measurement items of cognitive and physical health differed across all three countries’ panel surveys. CONCLUSION: These results suggest that in order to compare East Asian health policies according to the aging society, it is necessary to develop consistent cognitive and physical health evaluation tools in the future.
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spelling pubmed-86716552021-12-16 Cross-National Comparisons of Cognitive and Physical Health in Older Adults Across China, Japan, and Korea: A Systematic Review Nam, Sanghun Pritchard, Kevin T. Bae, Suyeong Hong, Ickpyo Inquiry Systematic Review or Meta-Analysis BACKGROUND: Cross-national studies are an emerging research area in public health. Specifically, cross-national health comparisons are important for understanding the factors driving the success or failure of public health policies. Therefore, this study systematically analyzed studies that compared health status (physical health and cognition) of the older adults using national panel data for three East Asian countries—China, Japan, and Korea. METHODS: Google Scholar and PubMed were used for the literature search. The search strategy targeted papers published between 2005 and 2020, yielding a total of 2690 papers, of which seven were selected for the review. The Center for Evidence-Based Medicine (CEBM) criteria was used to assess study design quality. The risk of bias for non-randomized studies (RoBANS) tool, a quality assessment tool developed in Korea to evaluate non-randomized interventional studies, measured risk of bias. RESULTS: Of the seven included papers, two studies performed cognitive comparisons, four studies performed physical health comparisons, and one study compared both cognition and physical health. The studies selected for this study by CEBM criteria included four prospective cohort studies (Level 2B) and three expert opinions without explicit critical appraisal (Level 5). Risk of bias using the RoBANS tool found a risk of confounding variables in four out of seven papers. Finally, measurement items of cognitive and physical health differed across all three countries’ panel surveys. CONCLUSION: These results suggest that in order to compare East Asian health policies according to the aging society, it is necessary to develop consistent cognitive and physical health evaluation tools in the future. SAGE Publications 2021-12-13 /pmc/articles/PMC8671655/ /pubmed/34898332 http://dx.doi.org/10.1177/00469580211062451 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by-nc/4.0/This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
spellingShingle Systematic Review or Meta-Analysis
Nam, Sanghun
Pritchard, Kevin T.
Bae, Suyeong
Hong, Ickpyo
Cross-National Comparisons of Cognitive and Physical Health in Older Adults Across China, Japan, and Korea: A Systematic Review
title Cross-National Comparisons of Cognitive and Physical Health in Older Adults Across China, Japan, and Korea: A Systematic Review
title_full Cross-National Comparisons of Cognitive and Physical Health in Older Adults Across China, Japan, and Korea: A Systematic Review
title_fullStr Cross-National Comparisons of Cognitive and Physical Health in Older Adults Across China, Japan, and Korea: A Systematic Review
title_full_unstemmed Cross-National Comparisons of Cognitive and Physical Health in Older Adults Across China, Japan, and Korea: A Systematic Review
title_short Cross-National Comparisons of Cognitive and Physical Health in Older Adults Across China, Japan, and Korea: A Systematic Review
title_sort cross-national comparisons of cognitive and physical health in older adults across china, japan, and korea: a systematic review
topic Systematic Review or Meta-Analysis
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8671655/
https://www.ncbi.nlm.nih.gov/pubmed/34898332
http://dx.doi.org/10.1177/00469580211062451
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