Evidence map›Paper›PMID 34976773›Full record

ArticleTranslational pediatrics2021

Relationship between bronchopulmonary dysplasia, long-term lung function, and vitamin D level at birth in preterm infants.

Tiantian Lu, Bin Liang, Yanping Jia, Jiangyun Cai, Danhong Wang, Min Liu, Bo He, Qing Wang

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 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 30% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Effect of vitamin D supplementation on incidence of bronchopulmonary dysplasia among preterm infants up to 36 weeks' gestational age.Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition · 2025
    Review
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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 4 institutions in 1 country.

Tiantian Lu *Department of Neonatology, Haikou Maternal and Child Health Hospital, Haikou, China.
Bin Liang *Department of Pediatric Medicine, Affiliated Haikou Hospital of Xiangya Medical School Central South University, Haikou, China.
Yanping JiaDepartment of Neonatology, Haikou Maternal and Child Health Hospital, Haikou, China.
Jiangyun CaiDepartment of Neonatology, Haikou Maternal and Child Health Hospital, Haikou, China.
Danhong WangDepartment of Pediatric Medicine, Affiliated Haikou Hospital of Xiangya Medical School Central South University, Haikou, China.
Min LiuDepartment of Pediatric Medicine, Affiliated Haikou Hospital of Xiangya Medical School Central South University, Haikou, China.
Bo HeDepartment of Pediatric Medicine, Affiliated Haikou Hospital of Xiangya Medical School Central South University, Haikou, China.
Qing WangDepartment of Neonatology, Hainan Modern Women and Children's Hospital, Haikou, China.
Hainan Maternal and Child Health Hospital · CNHainan Medical University · CNCentral South University · CNHainan Modern Women and Children's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe aimed to investigate the relationship between the level of serum 25 hydroxyvitamin D [25-(OH)D] at birth and the complications of bronchopulmonary dysplasia (BPD), as well as the long-term lung function of preterm infants.

methodsA total of 286 premature infants who were admitted to the neonatal ward of Haikou Maternal and Child Health Hospital from January 2018 to December 2020 and met the inclusion criteria were selected as the research objects. The level of serum 25(OH)D at birth was detected. The children were divided into a BPD group (79 cases) and a non-BPD group (207 cases). The case information and basic data of the children were recorded. The children were followed up 6 months after correcting the gestational age of 40 weeks, and their long-term lung function development was reported. Logistic regression analysis was used to evaluate the high-risk factors of BPD in preterm infants.

resultsThe 1- and 5-minute Apgar scores of preterm infants in the BPD group were significantly lower than those in the non-BPD group. Also, the combined neonatal pneumonia, neonatal asphyxia, hospital stay, and total oxygen therapy time in the BPD group were substantially higher than those in the non-BPD group. The mean value of serum 25-(OH)D at birth in the BPD group (33.7±15.1 nmol/L) was significantly lower than that in the non-BPD group (49.5±19.6 nmol/L). Compared with the non-BPD group, the respiratory rate (RR) in the BPD group increased significantly, while the tidal volume (VT), inspiratory to expiratory ratio (TI/TE), ratio of time to peak tidal expiratory flow to total expiratory time (TPEF/TE), and 25% tidal expiratory flow rate (TEF25%) decreased markedly (P<0.05). Total oxygen therapy time, neonatal pneumonia, neonatal asphyxia, and serum 25-(OH)D level at birth were identified as independent risk factors for BPD in preterm infants.

conclusionsThe level of serum 25-(OH)D in preterm infants at birth is closely related to the occurrence of BPD and long-term lung function damage, and is affected by multiple high-risk factors. This study provides a theoretical basis for the individualized treatment of preterm infants and the early prevention of BPD.

Indexed as

25 hydroxyvitamin Dbronchopulmonary dysplasia (BPD)Premature infantspulmonary function

Identifiers

PMID34976773
PMCPMC8649600
OpenAlexW3214761963

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.