Evidence map›Paper›PMID 32238156›Full record

ArticleBMC public health2020

Status and influential factors of vitamin D among children aged 0 to 6 years in a Chinese population.

Heng Zhang, Zhijuan Li, Yarong Wei, Jinyan Fu, Yaling Feng, Daozhen Chen, Dexiang Xu

Open access · goldAbstract read
In one paragraph

Article in BMC public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
1.4field-weighted citation impact, top 19% 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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.

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  16. The Effect of UV Irradiation on Vitamin DFoods (Basel, Switzerland) · 2020
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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

7 authors at 3 institutions in 1 country.

Heng ZhangDepartment of Toxicology, Anhui Medical University, Hefei, Anhui, China.
Zhijuan LiWuxi Center for Disease Prevention and Control, Wuxi, Jiangsu, China.
Yarong WeiDepartment of Child Health Care, The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.
Jinyan FuDepartment of Obstetrics, The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.
Yaling FengDepartment of Perinatal Health Care, The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.
Daozhen ChenDepartment of Clinical Laboratory, The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China. chendaozhen@163.com.
Dexiang XuDepartment of Toxicology, Anhui Medical University, Hefei, Anhui, China. xudexdev@sina.com.
Nanjing Maternity and Child Health Care Hospital · CNAnhui Medical University · CNNanjing Medical University · CN

Funding

Jiangsu Maternal and Child Health Youth Talents Project FRC201783Major scientific research project of Wuxi Municipal Health Commission Z201902Maternal and Child Health Research Key Project of Jiangsu Province F201601National Natural Science Foundation of China 81502813Wuxi Health Planning Commission of Maternal and child health Appropriate Technical Projects Fund FYTG201736Wuxi Kejiao Qiang Wei Key Medical Talent Project ZDRC010
6 · The paper itself

Abstract

backgroundVitamin D insufficiency and deficiency in childhood are common. However, the status and influential factors of vitamin D during different ages are not clear. This study aimed to survey vitamin D concentrations in children aged 0 to 6 years and explore its influential factors.

methodsA total of 6953 children were recruited in Wuxi City of East China from January to December in 2016. Enzyme-linked immunosorbent assay was used to determine the serum concentrations of 25-hydroxyvitamin D [25(OH)D].

resultsThe median vitamin D concentrations in the infant group (0-1 years of age) was 69.40 nmol/L, which were higher than that in both the toddlerhood group (1-3 years of age; 62.30 nmol/L) and the preschool group (3-6 years of age; 50.85 nmol/L). In addition, the median vitamin D concentrations were 71.70 nmol/L in summer, which was higher than that in spring (64.25 nmol/L), autumn (62.95 nmol/L) and winter (64.10 nmol/L). However, no difference was observed between genders (P = 0.974). Furthermore, the prevalence of vitamin D deficiency (< 50 nmol/L) was 48.1% in the preschool group (3-6 years of age), which was higher than the 21.2% vitamin D deficiency in the toddlerhood group (1-3 years of age) and the 17.9% vitamin D deficiency in the infant group (0-1 years of age). Interestingly, a nonlinear association between 25(OH) D and air temperature was observed.

conclusionsA high prevalence of vitamin D deficiency was common in a Chinese population of children 0-6 years old, especially in the preschool-aged children. Therefore, we suggested that we should pay more attention to vitamin D supplementation in Chinese young children.

Indexed as

SeasonsAge FactorsAsian PeopleChildChild, PreschoolChinaCitiesDietary SupplementsEnzyme-Linked Immunosorbent AssayFemaleHumansInfantInfant, NewbornMalePrevalenceSurveys and Questionnaires25-hydroxyvitamin DVitamin DVitaminsAir temperatureChildren ageDeficiencySeasonVitamin D

Identifiers

PMID32238156
PMCPMC7114801
OpenAlexW3014351218

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.