Evidence map›Paper›PMID 34012840›Full record

ArticleTranslational pediatrics2021

The correlation between neonatal vitamin D levels and the risk of childhood asthma attacks.

Wenlin Li, Jin Zhou, Shen Liu, Kaihui Xing, Ling Yang, Lihua Zhong, Qiuli Chen, Wei Zhang

Open access · diamondAbstract read
In one paragraph

Article in Translational pediatrics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-weighted citation impact, top 34% 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

3 citing papers in PubMed, 5 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

8 authors at 1 institution in 1 country.

Wenlin LiDepartment of Neonatology, Haikou Hospital of The Maternal And Child Health, Haikou, China.
Jin ZhouDepartment of Pediatrics, Haikou Hospital of Maternal and Child Health, Haikou, China.
Shen LiuDepartment of Pediatrics, Haikou Hospital of Maternal and Child Health, Haikou, China.
Kaihui XingDepartment of Neonatology, Haikou Hospital of The Maternal And Child Health, Haikou, China.
Ling YangDepartment of Neonatology, Haikou Hospital of The Maternal And Child Health, Haikou, China.
Lihua ZhongDepartment of Neonatology, Haikou Hospital of The Maternal And Child Health, Haikou, China.
Qiuli ChenDepartment of Pediatrics, Haikou Hospital of Maternal and Child Health, Haikou, China.
Wei ZhangDepartment of Neonatology, Haikou Hospital of The Maternal And Child Health, Haikou, China.
Hainan Maternal and Child Health Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo explore the correlation between neonatal vitamin D levels and the risk of asthma in children aged 3-9 years.

methodsA total of 1,534 subjects were selected, and clinical and laboratory test data of all subjects were collected at birth, including 25-hydroxyvitamin D3 [25(OH)D3] levels, gender, season of birth, birth weight; whether delivery was premature, cesarean section, or primipara; and parental details including maternal age, ethnicity, level of education, history of smoking, and history of maternal or paternal asthma. The level of 25(OH)D3 was used as a continuous variable to analyze its correlation with the risk of asthma using the Cox proportional regression model. In addition, subjects were divided into four groups according to their 25(OH)D3 quartiles, and the first quantile group was used as a reference to analyze the risk of asthma in the other groups. Further subgroup analysis was conducted according to the patients' gender and birth season.

resultsAmong the 1,534 subjects included, there were 107 cases in the asthma-affected group and 1,427 cases in the normal control group. Compared with the control group, the level of 25(OH)D3 in the asthma group was significantly lower (P=0.03), the mother's education level was lower (P=0.002), but the preterm birth rate, cesarean section rate, and parental asthma prevalence rate were significantly higher (all P<0.05). When the neonatal 25(OH)D3 was divided into quartiles to perform a categorical variable analysis, we found that compared with the first quantile (Q1, 0.0-25.1 mmol/L), the risk of asthma in Q4 was reduced by 50% (HR=0.50, 95% CI: 0.38-0.76). The second quantile group (Q2) and the third quantile group (Q3) showed no significant difference in the risk of disease compared with Q1 but showed a trend of decreasing risk as the quantile group increased (the trend P values were both <0.05). This correlation was still valid when a stratified analysis was made based on gender and birth season.

conclusionsThere is a significant correlation between a reduced vitamin D level in newborns and the subsequent risk of asthma in children aged 3-9 years. Moreover, the level of vitamin D is an independent risk factor for childhood asthma.

Indexed as

asthmachildrenNewbornsvitamin D

Identifiers

PMID34012840
PMCPMC8107849
OpenAlexW3157071285

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.