Evidence map›Paper›PMID 37923810›Full record

ArticleScientific reports2023

Effects of heavy metal exposure during pregnancy on birth outcomes.

Sabrina Shafi Zinia, Ki-Hyeok Yang, Eun Ju Lee, Myoung-Nam Lim, Jeeyoung Kim, Woo Jin Kim, Ko-CHENS Study group

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
5.2field-weighted citation impact, top 3% 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

19 citing papers in PubMed, 33 citations in OpenAlex.

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  9. JMIR research protocols · 2025
    Article
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  11. Mapping Chemical-Gene Interactions for Developmental Lethality and Pregnancy Loss.medRxiv : the preprint server for health sciences · 2025
    Article
  12. 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

7 authors at 20 institutions in 1 country.

Sabrina Shafi ZiniaDepartment of Internal Medicine and Environmental Health Center, School of Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea.
Ki-Hyeok YangDepartment of Internal Medicine and Environmental Health Center, School of Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea.
Eun Ju LeeDepartment of Internal Medicine and Environmental Health Center, School of Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea.
Myoung-Nam LimDepartment of Internal Medicine and Environmental Health Center, School of Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea.
Jeeyoung KimDepartment of Internal Medicine and Environmental Health Center, School of Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea.
Woo Jin KimDepartment of Internal Medicine and Environmental Health Center, School of Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea. pulmo2@kangwon.ac.kr.
Ko-CHENS Study group
Kangwon National University · KRMinistry of Environment · KRChonnam National University Hwasun Hospital · KRKorea University · KRUlsan College · KRDong-A University · KREwha Womans University · KRInha University · KRDankook University · KRSamsung Medical Center · KRSeoul National University Hospital · KRSoonchunhyang University Hospital Seoul · KREwha Womans University Medical Center · KRSeoul National University · KRCatholic University of Korea · KRDaegu Catholic University · KRInha University Hospital · KRJeju National University · KRKangwon National University Hospital · KRKorea University Medical Center · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Exposure to heavy metals such as lead, cadmium, and mercury poses serious health risks to pregnant women because of their high toxicity. In this study, we investigated the associations of heavy metal exposure with birth outcomes of Korean infants. Data of 5,215 women between 2015 and 2019 were analyzed. This study was part of the Korean Children's Environmental Health (Ko-CHENS) study. Linear regression and logistic regression analyses were used to examine effects of concentrations of lead, cadmium, and mercury on birth weight, small for gestational age, and large for gestational age after adjusting for maternal age groups, parity, infant sex, education, income, smoking, drinking, body mass index, stillbirth, premature birth, diabetes, hypertension, and gestational diabetes. Besides adjusting for these covariates, each metal was mutually adjusted to estimate birth weight and large for gestational age status. Maternal cadmium concentrations during early pregnancy (β =  - 39.96; 95% confidence interval (CI): - 63.76, - 16.17) and late pregnancy (β =  - 37.24; 95% CI - 61.63, - 12.84) were significantly associated with birth weight. Cadmium levels during early pregnancy (adjusted OR = 0.637; 95% CI 0.444, 0.912) were also associated with large for gestational age status. Our findings suggest that prenatal cadmium exposure, even at a low level of exposure, is significantly associated with low birth weight.

Indexed as

MercuryMetals, HeavyPremature BirthBirth WeightCadmiumChildFemaleHumansInfantInfant, NewbornMaternal ExposurePregnancyStillbirthCadmiumMercuryMetals, Heavy

Identifiers

PMID37923810
PMCPMC10624662
OpenAlexW4388292504

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.