Evidence map›Paper›PMID 34620118›Full record

ArticleBMC geriatrics2021

Vitamin D status and obesity markers in older adults: results from West China Health and Aging Trends study.

Yunli Zhao, Wanyu Zhao, Qiukui Hao, Meiling Ge, Yan Zhang, Fengjuan Hu, Ying Lu, Lixing Zhou, Xiaolei Liu, Birong Dong

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC geriatrics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.8field-weighted citation impact, top 29% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 11 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Yunli ZhaoThe Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, GuoXueXiang 37, Sichuan, 610041, Chengdu, China.
Wanyu ZhaoThe Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, GuoXueXiang 37, Sichuan, 610041, Chengdu, China.
Qiukui HaoThe Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, GuoXueXiang 37, Sichuan, 610041, Chengdu, China.
Meiling GeThe Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, GuoXueXiang 37, Sichuan, 610041, Chengdu, China.
Yan ZhangThe Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, GuoXueXiang 37, Sichuan, 610041, Chengdu, China.
Fengjuan HuThe Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, GuoXueXiang 37, Sichuan, 610041, Chengdu, China.
Ying LuNational Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, China.
Lixing ZhouThe Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, GuoXueXiang 37, Sichuan, 610041, Chengdu, China.
Xiaolei LiuThe Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, GuoXueXiang 37, Sichuan, 610041, Chengdu, China.
Birong DongThe Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, GuoXueXiang 37, Sichuan, 610041, Chengdu, China. Birongdong123@outlook.com.
Sichuan University · CNWest China Hospital of Sichuan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundsVitamin D deficiency and insufficiency in older adults seems to be common, but the prevalence estimates are lacking in West China. Previous studies suggested that low vitamin D status was associated with obesity. However, most of them evaluated obesity based on body mass index (BMI) and there are no studies at present exploring the association between vitamin D status and different obesity markers. The present study aims to investigate the prevalence of low vitamin D status and evaluate the association between the vitamin D status and different obesity markers among older adults in West China.

methodsData was based on the baseline of West China Health and Aging Trends study (WCHAT). All of the participants were older than 60 years old in the present study. Vitamin D status was based on laboratory data, and obesity markers were assessed by bioelectrical impedance analysis (BIA) using the InBody 770 analyzer. Multiple linear regression was performed to find the association between the vitamin D status and various obesity markers.

resultsThe study included 2661 individuals (mean age: 67.7 ± 6.0 years; males: 41 %). The mean vitamin D level was 18.8 ± 6.3 ng/ml (range: 5 to 59 ng/ml); 5.2 % of participants had a sufficient level of vitamin D, 31.8 % had vitamin D insufficiency, and 63.0 % had vitamin D deficiency. Our results showed that vitamin D status was negatively associated with fat mass index (FMI), visceral fat area (VFA), and waist-hip ratio (WHR) in both sexes. Comparing to other obesity markers, WHR had the strongest correlation with vitamin D status in both sexes (β = -6.090, P = 0.046 in males; β = -11.253, P < 0.001 in females). No significant association was found between vitamin D status and BMI in males.

conclusionThe prevalence of vitamin D insufficiency and deficiency among older adults in West China was high. Among the older adults in west China, WHR showed stronger association with vitamin D status and was better for the prediction of vitamin D insufficiency or deficiency in both sexes, compared to BMI.

trial registrationChinese Clinical Trial Registry: ChiCTR1800018895 .

Indexed as

Vitamin DVitamin D DeficiencyAgedAgingBody Mass IndexChinaCross-Sectional StudiesFemaleHumansMaleObesityVitamin DBody mass indexObesity markersOlder adultsVitamin D statusWaist-hip ratio

Identifiers

PMID34620118
PMCPMC8496024
OpenAlexW3204448872

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.