Evidence map›Paper›PMID 34728761›Full record

ArticleJournal of exposure science & environmental epidemiology2022

Identifying periods of heightened susceptibility to lead exposure in relation to behavioral problems.

Clara G Sears, Bruce P Lanphear, Yingying Xu, Aimin Chen, Kimberly Yolton, Joseph M Braun

Open access · greenAbstract read
In one paragraph

Article in Journal of exposure science & environmental epidemiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
0.7field-weighted citation impact, top 32% 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 14 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

6 authors at 5 institutions in 2 countries.

Clara G SearsDepartment of Epidemiology, Brown University, Providence, RI, USA. clara.sears@louisville.edu.
Bruce P LanphearFaculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada.
Yingying XuDivision of General and Community Pediatrics, Cincinnati Children's Hospital, Cincinnati, OH, USA.
Aimin ChenDepartment of Biostatistics, Epidemiology and Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
Kimberly YoltonDepartment of Pediatrics, Cincinnati Children's Hospital, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
Joseph M BraunDepartment of Epidemiology, Brown University, Providence, RI, USA.
Brown University · USCincinnati Children's Hospital Medical Center · USSimon Fraser University · CAUniversity of Cincinnati Medical Center · USUniversity of Pennsylvania · US

Funding

REPRODUCTIVE AND DEVELOPMENTAL TOXICOLOGY RESEARCHP30ES006096 · NIEHS · UNIVERSITY OF CINCINNATI · PI PINNEY, SUSAN MENGEL · 1992 to 2022
$35.4M
Study of Prevalent Neurotoxicants in ChildrenP01ES011261 · NIEHS · CINCINNATI CHILDRENS HOSP MED CTR · PI LANPHEAR, BRUCE P · 2001 to 2006
$6.4M
Developmental neurotoxicity of organophosphate and novel brominated flame retardants in childrenR01ES028277 · NIEHS · UNIVERSITY OF PENNSYLVANIA · PI CHEN, AIMIN · 2017 to 2022
$3.4M
Impact of pre- and postnatal chemical mixture exposures on child neurobehavior and neuroimagingR01ES033054 · NIEHS · UNIVERSITY OF PENNSYLVANIA · PI CHEN, AIMIN · 2021 to 2025
$3.3M
A Community-Based Trial to Prevent Lead Poisoning and InjuriesR01ES014575 · NIEHS · CINCINNATI CHILDRENS HOSP MED CTR · PI YOLTON, KIMBERLY · 2007 to 2011
$2.9M
Longitudinal study of exposure to PBDEs and PFCs and child neurobehaviorR01ES020349 · NIEHS · UNIVERSITY OF CINCINNATI · PI CHEN, AIMIN, LANPHEAR, BRUCE P · 2011 to 2015
$2.9M
NIEHS NIH HHS P01 ES011261NIEHS NIH HHS P30 ES006096NIEHS NIH HHS R01 ES014575NIEHS NIH HHS R01 ES020349NIEHS NIH HHS R01 ES028277NIEHS NIH HHS R01 ES033054
6 · The paper itself

Abstract

backgroundLead exposure is associated with behavioral problems in children, but the age(s) of greatest susceptibility to low-level lead exposure is unknown.

objectiveWe evaluated the association of repeated blood lead concentrations with parent-reported behaviors to identify periods of heightened susceptibility during infancy and childhood (HOME Study; Cincinnati, OH; 2003-2006; n = 244).

methodsWe quantified lead in whole blood samples (ages 1, 2, 3, 4, 5, and 8 years) and assessed behavior using the Behavioral Assessment System for Children-2 (BASC-2; ages 2, 3, 4, 5, and 8 years). We used multiple informant models and modified Poisson regression to estimate covariate-adjusted associations of ln-transformed blood lead concentrations with continuous BASC-2 T-scores and the relative risk of behavior scores classified as at-risk or clinically significant, respectively.

resultsWe observed trends indicating that higher blood lead concentrations at all ages were adversely associated with scores on behavioral scales. On the Externalizing Problems and Adaptive Skills scales, these associations were strongest for blood lead concentrations at age 8 years (β = 3.1-point; 95% CI = 0.7, 5.4 and β = -2.2-point; 95% CI = -4.9, 0.5, respectively) compared with other ages. Overall, higher blood lead concentrations were associated with elevated risk of behavior scores classified as at-risk or clinically significant on the Adaptive Skills, Behavioral Symptom Index, and Externalizing Problems scales. SIGNIFICANCE: Contemporary levels of lead exposure during the first 8 years of life were associated with ADHD-related behaviors, specifically aggression, hyperactivity, and conduct problems. IMPACT STATEMENT: Our results highlight the importance of primary lead prevention across childhood.

Indexed as

Prenatal Exposure Delayed EffectsProblem BehaviorChildHumansLeadLead

Identifiers

PMID34728761
PMCPMC8776587
OpenAlexW3209976513

What OpenQuestion holds

Textmetadata
LicenceTDM
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.