Evidence map›Paper›PMID 32790684›Full record

SynthesisPloS one2020

The association between prenatal exposure to polycyclic aromatic hydrocarbons and birth weight: A meta-analysis.

Liren Yang, Li Shang, Shanshan Wang, Wenfang Yang, Liyan Huang, Cuifang Qi, Anil Gurcan, Zixuan Yang, Mei Chun Chung

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 26% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 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 4 institutions in 2 countries.

Liren YangDepartment of Obstetrics and Gynecology, Maternal & Child Health Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China.
Li ShangDepartment of Obstetrics and Gynecology, Maternal & Child Health Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China.
Shanshan WangSchool of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P.R. China.
Wenfang YangDepartment of Obstetrics and Gynecology, Maternal & Child Health Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China.ORCID 0000-0001-7799-5008
Liyan HuangDepartment of Obstetrics and Gynecology, Maternal & Child Health Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China.
Cuifang QiDepartment of Obstetrics and Gynecology, Maternal & Child Health Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China.
Anil GurcanDepartment of Public Health and Community Medicine, Tufts University School of Medicine, Boston, Massachusetts, United States of America.
Zixuan YangAntai College, Shanghai Jiao Tong University, Shanghai, P.R. China.
Mei Chun ChungDepartment of Public Health and Community Medicine, Tufts University School of Medicine, Boston, Massachusetts, United States of America.
First Affiliated Hospital of Xi'an Jiaotong University · CNTufts University · USShanghai Jiao Tong University · CNXi'an Jiaotong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPolycyclic aromatic hydrocarbons (PAHs) are a kind of endocrine disruptors, which can enter human body by the inhalation of PAH-containing matter and the ingestion of PAH-containing foodstuffs. Studies showed that PAHs can cross the placental barrier and might cause adverse effects on the fetus.

objectivesThis meta-analysis aimed to estimate the associations between prenatal exposure to PAHs and birth weight.

methodsArticles published in English until May 8, 2020 and reported the effects of prenatal exposure to PAHs on birth weight were searched in multiple electronic databases including PubMed, the Web of Science, EMBASE and the Cochrane Library. The included studies were divided into three groups in accordance with the measurement of PAHs exposure. Then coefficient was extracted, conversed and synthesized by random-effects meta-analysis. And risk of bias was assessed for each study.

resultsA total of 3488 citations were searched and only 11 studies were included finally after double assessment. We found that there were no association between PAH-DNA adducts in cord blood (low/high) (OR: 1.0, 95%CI: 0.97, 1.03), 1-hydroxy pyrene (1-HP) concentration in maternal urine (OR: 1.0, 95%CI: 0.97, 1.03) and prenatal maternal airborne PAHs exposure (OR: 0.97, 95%CI: 0.93, 1.01) and birth weight. However, we observed ethnicity may change the effects of PAHs exposure on birth weight.

conclusionsThere is no significant relationship between prenatal exposure to PAHs and birth weight in our meta-analysis. Further studies are still needed for determining the effects of prenatal PAHs exposure on birth weight.

Indexed as

Maternal ExposureAir PollutantsBirth WeightDatabases, FactualDNA AdductsEndocrine DisruptorsFemaleFetal BloodHumansOdds RatioPolycyclic Aromatic HydrocarbonsPregnancyPyrenes1-hydroxypyreneAir PollutantsDNA AdductsEndocrine DisruptorsPolycyclic Aromatic Hydrocarbonspolycyclic aromatic hydrocarbons-DNA adductPyrenes

Identifiers

PMID32790684
PMCPMC7425945
OpenAlexW3049655867

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.