A Comparison Study of Vitamin D Deficiency among Older Adults in China and the United States

Abstract Vitamin D deficiency is a common health concern worldwide. We aim to compare the prevalence of vitamin D deficiency among older adults (65+) in China and the United States (US). We used data from the 2011 wave of Chinese Longitudinal Healthy Longevity Survey (CLHLS) in China (n = 2180), and...

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Autores principales:	Jia Wei, Anna Zhu, John S. Ji
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/12885c07cc2a467a83ea4ab0d83fb3c1
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spelling	oai:doaj.org-article:12885c07cc2a467a83ea4ab0d83fb3c12021-12-02T13:35:03ZA Comparison Study of Vitamin D Deficiency among Older Adults in China and the United States10.1038/s41598-019-56297-y2045-2322https://doaj.org/article/12885c07cc2a467a83ea4ab0d83fb3c12019-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-56297-yhttps://doaj.org/toc/2045-2322Abstract Vitamin D deficiency is a common health concern worldwide. We aim to compare the prevalence of vitamin D deficiency among older adults (65+) in China and the United States (US). We used data from the 2011 wave of Chinese Longitudinal Healthy Longevity Survey (CLHLS) in China (n = 2180), and 2011–2014 National Health and Nutrition Examination Survey (NHANES) in the US (n = 2283). Serum 25-hydroxyvitamin D [25(OH)D] was measured and a level of under 30/50 nmol/L was defined as vitamin D severe deficiency/deficiency. Risk factors of vitamin D deficiency were examined by multivariate regression models. We found that the mean 25(OH)D concentration was lower in China than in the US (45.1 vs. 83.5 nmol/L), with Chinese elderly lower than American elderly for every age group. 70.3% in China and 17.4% in the US were considered as vitamin D deficiency (30.6% and 3.4% were considered as severe deficiency). Older age, females, ethnic minorities, higher household income, self-rated “very bad” health, and never drinkers, were statistically significant in predicting lower serum 25(OH)D levels in China. In the US, males, ethnic minorities, lower income, self-rated “very bad” health, physically inactive, overweight, and obese were related to lower serum 25(OH)D levels. Our findings suggest that different interventional strategies are needed to improve vitamin D deficiency and its associated negative health outcomes in China and the US.Jia WeiAnna ZhuJohn S. JiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-11 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jia Wei Anna Zhu John S. Ji A Comparison Study of Vitamin D Deficiency among Older Adults in China and the United States
description	Abstract Vitamin D deficiency is a common health concern worldwide. We aim to compare the prevalence of vitamin D deficiency among older adults (65+) in China and the United States (US). We used data from the 2011 wave of Chinese Longitudinal Healthy Longevity Survey (CLHLS) in China (n = 2180), and 2011–2014 National Health and Nutrition Examination Survey (NHANES) in the US (n = 2283). Serum 25-hydroxyvitamin D [25(OH)D] was measured and a level of under 30/50 nmol/L was defined as vitamin D severe deficiency/deficiency. Risk factors of vitamin D deficiency were examined by multivariate regression models. We found that the mean 25(OH)D concentration was lower in China than in the US (45.1 vs. 83.5 nmol/L), with Chinese elderly lower than American elderly for every age group. 70.3% in China and 17.4% in the US were considered as vitamin D deficiency (30.6% and 3.4% were considered as severe deficiency). Older age, females, ethnic minorities, higher household income, self-rated “very bad” health, and never drinkers, were statistically significant in predicting lower serum 25(OH)D levels in China. In the US, males, ethnic minorities, lower income, self-rated “very bad” health, physically inactive, overweight, and obese were related to lower serum 25(OH)D levels. Our findings suggest that different interventional strategies are needed to improve vitamin D deficiency and its associated negative health outcomes in China and the US.
format	article
author	Jia Wei Anna Zhu John S. Ji
author_facet	Jia Wei Anna Zhu John S. Ji
author_sort	Jia Wei
title	A Comparison Study of Vitamin D Deficiency among Older Adults in China and the United States
title_short	A Comparison Study of Vitamin D Deficiency among Older Adults in China and the United States
title_full	A Comparison Study of Vitamin D Deficiency among Older Adults in China and the United States
title_fullStr	A Comparison Study of Vitamin D Deficiency among Older Adults in China and the United States
title_full_unstemmed	A Comparison Study of Vitamin D Deficiency among Older Adults in China and the United States
title_sort	comparison study of vitamin d deficiency among older adults in china and the united states
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/12885c07cc2a467a83ea4ab0d83fb3c1
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A Comparison Study of Vitamin D Deficiency among Older Adults in China and the United States

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