Evidence map›Paper›PMID 26585546›Full record

ArticlePublic health nutrition2017

Vitamin D deficiency prevalence and risk factors among pregnant Chinese women.

Chunfeng Yun, Jing Chen, Yuna He, Deqian Mao, Rui Wang, Yu Zhang, Chun Yang, Jianhua Piao, Xiaoguang Yang

Open access · bronzeAbstract read
In one paragraph

Article in Public health nutrition, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 3 pooled it
2.0field-weighted citation impact, top 14% 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

35 citing papers in PubMed, 3 syntheses or guidelines pooled it, 68 citations in OpenAlex.

  1. Pooled it
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  10. Interplay Between Vitamin D Levels and Heavy Metals Exposure in Pregnancy and Childbirth: A Systematic Review.Pathophysiology : the official journal of the International Society for Pathophysiology · 2024
    Review
  11. Article
  12. Vitamin D effects onFrontiers in cellular and infection microbiology · 2024
    Article
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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

9 authors at 1 institution in 1 country.

Chunfeng Yun1Department of Trace Element Nutrition,National Institute of Nutrition and Health,Chinese Center for Disease Control and Prevention,Room 103,Nanwei Road No. 29,Xicheng District,Beijing 100050,People's Republic of China.
Jing Chen1Department of Trace Element Nutrition,National Institute of Nutrition and Health,Chinese Center for Disease Control and Prevention,Room 103,Nanwei Road No. 29,Xicheng District,Beijing 100050,People's Republic of China.
Yuna He2Department of Nutrition Surveillance,National Institute of Nutrition and Health,Chinese Center for Disease Control and Prevention,Beijing,People's Republic of China.
Deqian Mao1Department of Trace Element Nutrition,National Institute of Nutrition and Health,Chinese Center for Disease Control and Prevention,Room 103,Nanwei Road No. 29,Xicheng District,Beijing 100050,People's Republic of China.
Rui Wang1Department of Trace Element Nutrition,National Institute of Nutrition and Health,Chinese Center for Disease Control and Prevention,Room 103,Nanwei Road No. 29,Xicheng District,Beijing 100050,People's Republic of China.
Yu Zhang1Department of Trace Element Nutrition,National Institute of Nutrition and Health,Chinese Center for Disease Control and Prevention,Room 103,Nanwei Road No. 29,Xicheng District,Beijing 100050,People's Republic of China.
Chun Yang1Department of Trace Element Nutrition,National Institute of Nutrition and Health,Chinese Center for Disease Control and Prevention,Room 103,Nanwei Road No. 29,Xicheng District,Beijing 100050,People's Republic of China.
Jianhua Piao1Department of Trace Element Nutrition,National Institute of Nutrition and Health,Chinese Center for Disease Control and Prevention,Room 103,Nanwei Road No. 29,Xicheng District,Beijing 100050,People's Republic of China.
Xiaoguang Yang1Department of Trace Element Nutrition,National Institute of Nutrition and Health,Chinese Center for Disease Control and Prevention,Room 103,Nanwei Road No. 29,Xicheng District,Beijing 100050,People's Republic of China.
Chinese Center For Disease Control and Prevention · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate vitamin D deficiency prevalence and risk factors among pregnant Chinese women.

designA descriptive cross-sectional analysis.

settingChina National Nutrition and Health Survey (CNNHS) 2010-2013. SUBJECTS: A total of 1985 healthy pregnant women participated. Possible predictors of vitamin D deficiency were evaluated via multiple logistic regression analyses.

resultsThe median serum 25-hydroxyvitamin D level was 15·5 (interquartile range 11·9-20·0, range 3·0-51·5) ng/ml, with 74·9 (95 % CI 73·0, 76·7) % of participants being vitamin D deficient (25-hydroxyvitamin D <20 ng/ml). According to the multivariate logistic regression analyses, vitamin D deficiency was positively correlated with Hui ethnicity (P=0·016), lack of vitamin D supplement use (P=0·021) and low ambient UVB level (P<0·001). In the autumn months, vitamin D deficiency was related to Hui ethnicity (P=0·012) and low ambient UVB level (P<0·001). In the winter months, vitamin D deficiency was correlated with younger age (P=0·050), later gestational age (P=0·035), higher pre-pregnancy BMI (P=0·019), low ambient UVB level (P<0·001) and lack of vitamin D supplement use (P=0·007).

conclusionsVitamin D deficiency is prevalent among pregnant Chinese women. Residing in areas with low ambient UVB levels increases the risk of vitamin D deficiency, especially for women experiencing advanced stages of gestation, for younger pregnant women and for women of Hui ethnicity; therefore, vitamin D supplementation and sensible sun exposure should be encouraged, especially in the winter months. Further studies must determine optimal vitamin D intake and sun exposure levels for maintaining sufficient vitamin D levels in pregnant Chinese women.

Indexed as

AdolescentAdultAge FactorsBody Mass IndexChinaCross-Sectional StudiesEthnicityFemaleHumansPregnancyPregnancy ComplicationsRisk FactorsSunlightVitamin D DeficiencyYoung Adult25-Hydroxyvitamin DChinaDeficiencyInsufficiencyPregnancyVitamin D

Identifiers

PMID26585546
PMCPMC10261554
OpenAlexW2282435886

What OpenQuestion holds

Textmetadata
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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.