Evidence map›Paper›PMID 34197971›Full record

ArticleEnvironment international2021

Cord serum elementomics profiling of 56 elements depicts risk of preterm birth: Evidence from a prospective birth cohort in rural Bangladesh.

Hui Huang, Liangmin Wei, Xin Chen, Ruyang Zhang, Li Su, Mahmudur Rahman, Md Golam Mostofa, Quazi Qamruzzaman, Yang Zhao, Hao Yu and 3 more

Open access · goldAbstract read
In one paragraph

Article in Environment international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Early Marriage, Preterm Birth, and School Dropout: An Intergenerational Cycle of Risk?American journal of human biology : the official journal of the Human Biology Council · 2025
    Pooled it
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  12. Joint effects of prenatal PMFrontiers in public health · 2025
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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

13 authors at 3 institutions in 3 countries.

Hui HuangState Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
Liangmin WeiDepartment of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
Xin ChenDepartment of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
Ruyang ZhangDepartment of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China; China International Cooperation Center for Environment and Human Health, Center of Global Health, Nanjing Medical University, Nanjing 211166, China.
Li SuDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
Mahmudur RahmanDhaka Community Hospital Trust, Dhaka, Bangladesh.
Md Golam MostofaDhaka Community Hospital Trust, Dhaka, Bangladesh.
Quazi QamruzzamanDhaka Community Hospital Trust, Dhaka, Bangladesh.
Yang ZhaoDepartment of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
Hao YuDepartment of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
Yongyue WeiDepartment of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China; China International Cooperation Center for Environment and Human Health, Center of Global Health, Nanjing Medical University, Nanjing 211166, China. Electronic address: ywei@njmu.edu.cn.
David C ChristianiChina International Cooperation Center for Environment and Human Health, Center of Global Health, Nanjing Medical University, Nanjing 211166, China; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
Feng ChenState Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China; China International Cooperation Center for Environment and Human Health, Center of Global Health, Nanjing Medical University, Nanjing 211166, China.
Nanjing Medical University · CNDhaka Community Hospital Trust · BDHarvard University · US

Funding

Translational Research Support CoreP30ES000002 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI JAIME ELIZABETH HART · 1985 to 2026
$44.6M
Arsenic Exposure and Birth Outcomes in BangladeshR01ES015533 · NIEHS · HARVARD SCHOOL OF PUBLIC HEALTH · PI CHRISTIANI, DAVID C · 2007 to 2011
$2.1M
NIEHS NIH HHS P30 ES000002NIEHS NIH HHS R01 ES015533
6 · The paper itself

Abstract

Maternal exposure to some individual rare earth elements and trace elements is associated with preterm birth, but few elements have been studied and little is known about the potential effect of simultaneous exposure to multiple elements. We examined individual and mixture effects of elements on preterm birth among 745 pregnant women in a prospective birth cohort in Bangladesh (2008-2011). We measured 56 elements in umbilical cord blood collected during delivery using inductively coupled plasma-mass spectrometry. Using elastic net (ENET) regularization and multivariate logistic regression, we examined independent associations between element concentrations and preterm birth. Bayesian kernel machine regression identified mixture effects of elements most critical to preterm birth, accounting for correlated exposure and interaction. ENET identified titanium (Ti), arsenic (As), and barium (Ba) as the most important predictors of shortened gestational age and preterm birth. In adjusted models, cord blood Ti (OR = 2.52; 95% CI: 1.08-5.93; P = 0.033), As (odds ratio (OR) = 1.34; 95% CI: 1.04-1.73; P = 0.023), and Ba (OR = 1.18; 95% CI: 1.02-1.38; P = 0.029) were significantly associated with preterm birth. Bayesian kernel machine regression suggested an interaction effect between As and Ba. Further, we constructed an element risk score (ERS) using estimated weights from a multivariate regression model for Ti, As, and Ba and regressed preterm birth by this score (OR = 2.72, 95% CI: 1.57-4.69; P = 3.35 × 10

Indexed as

Premature BirthAdolescentBangladeshBayes TheoremFemaleHumansInfant, NewbornMaternal ExposurePregnancyProspective StudiesYoung AdultBangladeshElement exposureInductively coupled plasma mass spectrometryMixturesPreterm birth

Identifiers

PMID34197971
PMCPMC11152765
OpenAlexW3174967606

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.