Evidence map›Paper›PMID 33990187›Full record

ArticleBMC pediatrics2021

The association between ambient air pollution and birth defects in five major ethnic groups in Liuzhou, China.

Xiaoli Huang, Jichang Chen, Dingyuan Zeng, Zhong Lin, Carly Herbert, Lesley Cottrell, Liu Liu, Arlene Ash, Bo Wang

Open access · goldAbstract read
In one paragraph

Article in BMC pediatrics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.6field-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

7 citing papers in PubMed, 20 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

9 authors at 3 institutions in 2 countries.

Xiaoli HuangLiuzhou Maternity and Child Healthcare Hospital, 50 Yingshan Street, Liuzhou, 545003, Guangxi Zhuang Autonomous Region, China.
Jichang ChenLiuzhou Maternity and Child Healthcare Hospital, 50 Yingshan Street, Liuzhou, 545003, Guangxi Zhuang Autonomous Region, China. 1368447698@qq.com.
Dingyuan ZengLiuzhou Maternity and Child Healthcare Hospital, 50 Yingshan Street, Liuzhou, 545003, Guangxi Zhuang Autonomous Region, China.
Zhong LinLiuzhou Maternity and Child Healthcare Hospital, 50 Yingshan Street, Liuzhou, 545003, Guangxi Zhuang Autonomous Region, China.
Carly HerbertDepartment of Population and Quantitative Health Sciences, Albert Sherman Center, University of Massachusetts Medical School, 368 Plantation Street, Worcester, MA, 01605, USA.
Lesley CottrellDepartment of Pediatrics, West Virginia University School of Medicine, Morgantown, WV. One Medical Drive, Morgantown, WV, 26506, USA.
Liu LiuLiuzhou Maternity and Child Healthcare Hospital, 50 Yingshan Street, Liuzhou, 545003, Guangxi Zhuang Autonomous Region, China.
Arlene AshDepartment of Population and Quantitative Health Sciences, Albert Sherman Center, University of Massachusetts Medical School, 368 Plantation Street, Worcester, MA, 01605, USA.
Bo WangDepartment of Population and Quantitative Health Sciences, Albert Sherman Center, University of Massachusetts Medical School, 368 Plantation Street, Worcester, MA, 01605, USA. Bo.Wang@umassmed.edu.
Liuzhou Maternal and Child Health Hospital · CNUniversity of Massachusetts Chan Medical School · USWest Virginia University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStudies suggest that exposure to ambient air pollution during pregnancy may be associated with increased risks of birth defects (BDs), but conclusions have been inconsistent. This study describes the ethnic distribution of major BDs and examines the relationship between air pollution and BDs among different ethnic groups in Liuzhou city, China.

methodsSurveillance data of infants born in 114 registered hospitals in Liuzhou in 2019 were analyzed to determine the epidemiology of BDs across five major ethnic groups. Concentrations of six air pollutants (PM2.5, PM10, SO2, CO, NO2, O3) were obtained from the Liuzhou Environmental Protection Bureau. Logistic regression was used to examine the associations between ambient air pollution exposure and risk of BDs.

resultsAmong 32,549 infants, 635 infants had BDs, yielding a prevalence of 19.5 per 1000 perinatal infants. Dong ethnic group had the highest prevalence of BDs (2.59%), followed by Yao (2.57%), Miao (2.35%), Zhuang (2.07%), and Han (1.75%). Relative to the Han ethnic group, infants from Zhuang, Miao, Yao and Dong groups had lower risks of congenital heart disease, polydactyly, and hypospadias. The Zhuang ethnic group had higher risks of severe thalassemia, cleft lip and/or palate, and syndactyls. Overall BDs were positively correlated with air pollutants PM

conclusionThis study provides a comprehensive description of ethnic differences in BDs in Southwest China and broadens the evidence of the association between air pollution exposure during gestation and BDs.

Indexed as

Air PollutionCleft LipCleft PalateChinaEthnicityFemaleHumansInfantMaleParticulate MatterPregnancyParticulate MatterAmbient air pollutionBirth defectsEthnic groupsLiuzhou

Identifiers

PMID33990187
PMCPMC8120832
OpenAlexW3160130580

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.