Evidence map›Paper›PMID 29723752›Full record

Observational studyEnvironment international2018

Prenatal lead, cadmium and mercury exposure and associations with motor skills at age 7 years in a UK observational birth cohort.

Caroline M Taylor, Alan M Emond, Raghu Lingam, Jean Golding

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in Environment international, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
3.2field-weighted citation impact, top 9% 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 40 citations in OpenAlex.

  1. Neurodevelopmental Outcomes Associated with Early-Life Exposure to Heavy Metals: A Systematic Review.International journal of environmental research and public health · 2025
    Pooled it
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  9. Combined Exposure to Metals in Drinking Water Alters the Dopamine System in Mouse Striatum.International journal of environmental research and public health · 2021
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  11. Leaf ethanolic extract ofToxicological research · 2020
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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

4 authors at 2 institutions in 2 countries.

Caroline M TaylorCentre for Child and Adolescent Health, Bristol Medical School, University of Bristol, UK. Electronic address: Caroline.m.taylor@bristol.ac.uk.
Alan M EmondCentre for Child and Adolescent Health, Bristol Medical School, University of Bristol, UK.
Raghu LingamSchool of Women's and Children's Health, UNSW, Sydney, Australia.
Jean GoldingCentre for Child and Adolescent Health, Bristol Medical School, University of Bristol, UK.
University of Bristol · GBUNSW Sydney · AU

Funding

Medical Research Council G9815508Wellcome TrustWellcome Trust 102215/2/13/2Wellcome Trust 104077/Z/14/Z
6 · The paper itself

Abstract

backgroundLead and mercury are freely transferred across the placenta, while cadmium tends to accumulate in the placenta. Each contributes to adverse neurological outcomes for the child. Although prenatal heavy metal exposure has been linked with an array of neurodevelopmental outcomes in childhood, its association with the development of motor skills in children has not been robustly studied. AIMS/

objectiveThe aim of the present study was to investigate the association between prenatal exposure to lead, cadmium and mercury, measured as maternal blood concentrations during pregnancy, and motor skills, measured as subtests of the Movement Assessment Battery for Children (Movement ABC) at age 7 years in a large sample of mother-child pairs enrolled in a UK observational birth cohort study (Avon Longitudinal Study of Parents and Children, ALSPAC).

methodsWhole blood samples from pregnant women enrolled in ALSPAC were analysed for lead, cadmium and mercury. In a complete case analysis (n = 1558), associations between prenatal blood concentrations and child motor skills assessed by Movement ABC subtests of manual dexterity, ball skills and balance at 7 years were examined in adjusted regression models. Associations with probable developmental coordination disorder (DCD) were also investigated.

resultsThe mean prenatal blood levels were: lead 3.66 ± 1.55 μg/dl; cadmium 0.45 ± 0.54 μg/l; mercury 2.23 ± 1.14 μg/l. There was no evidence for any adverse associations of prenatal lead, cadmium or mercury exposure with motor skills measured at age 7 years with Movement ABC subtests in adjusted regression models. Further, there were no associations with probable DCD.

conclusionsThere was no evidence to support a role of prenatal exposure to heavy metals at these levels on motor skills in the child at age 7 years measured using the Movement ABC. Early identification of symptoms of motor skills impairment is important, however, to enable investigation, assessment and treatment.

Indexed as

Motor SkillsAdultChildCohort StudiesFemaleHumansMaternal ExposureMetals, HeavyPregnancyUnited KingdomMetals, HeavyALSPACCadmiumChildLeadMercuryMotor skillsPregnancy

Identifiers

PMID29723752
PMCPMC6024074
OpenAlexW2800343843

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.