Evidence map›Paper›PMID 26414943›Full record

ArticleEnvironment international2015

Prenatal DDT and DDE exposure and child IQ in the CHAMACOS cohort.

Fraser W Gaspar, Kim G Harley, Katherine Kogut, Jonathan Chevrier, Ana Maria Mora, Andreas Sjödin, Brenda Eskenazi

Open access · bronzeAbstract read
In one paragraph

Article in Environment international, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
5.6field-weighted citation impact, top 4% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 68 citations in OpenAlex.

  1. Early exposure to agricultural pesticides and the occurrence of autism spectrum disorder: a systematic review.Revista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo · 2022
    Pooled it
  2. Review
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  5. Article
  6. Article
  7. The Contribution of Environmental Science to Mental Health Research: A Scoping Review.International journal of environmental research and public health · 2023
    Article
  8. Article
  9. Article
  10. Prenatal exposure to pesticide residues in the diet in association with child autism-related traits: Results from the EARLI study.Autism research : official journal of the International Society for Autism Research · 2022
    Article
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  17. Review
  18. ImergardInsects · 2020
    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 4 institutions in 3 countries.

Fraser W GasparCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California at Berkeley, Berkeley, CA, USA.
Kim G HarleyCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California at Berkeley, Berkeley, CA, USA.
Katherine KogutCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California at Berkeley, Berkeley, CA, USA.
Jonathan ChevrierDepartment of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, QC, Canada.
Ana Maria MoraCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California at Berkeley, Berkeley, CA, USA; Central American Institute for Studies on Toxic Substances (IRET), Universidad Nacional, Heredia, Costa Rica.
Andreas SjödinDivision of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Brenda EskenaziCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California at Berkeley, Berkeley, CA, USA. Electronic address: eskenazi@berkeley.edu.
Center for Environmental Health · USAmerican Institute for Economic Research · USCenters for Disease Control and Prevention · USMcGill University · CA

Funding

Project C: Epigenetic Effects of DDT/E and PBDEs on PubertyP01ES009605 · NIEHS · UNIVERSITY OF CALIFORNIA BERKELEY · PI ESKENAZI, BRENDA · 1999 to 2015
$11.2M
DDT & PBDE exposure, puberty onset and neurodevelopment in Mexican-American girlsR01ES017054 · NIEHS · UNIVERSITY OF CALIFORNIA BERKELEY · PI ESKENAZI, BRENDA · 2009 to 2013
$3.2M
PBDEs, DDT and Neurodevelopment in School-Aged Mexican-American ChildrenR01ES015572 · NIEHS · UNIVERSITY OF CALIFORNIA BERKELEY · PI ESKENAZI, BRENDA · 2007 to 2010
$2.0M
Intramural CDC HHS CC999999NIEHS NIH HHS P01 ES0009605NIEHS NIH HHS P01 ES009605NIEHS NIH HHS R01 ES015572NIEHS NIH HHS R01ES015572NIEHS NIH HHS R01 ES017054NIEHS NIH HHS R01ES017054
6 · The paper itself

Abstract

Although banned in most countries, dichlorodiphenyl-trichloroethane (DDT) continues to be used for vector control in some malaria endemic areas. Previous findings from the Center for the Health Assessment of Mothers and Children of Salinas (CHAMACOS) cohort study found increased prenatal levels of DDT and its breakdown product dichlorodiphenyl-dichloroethylene (DDE) to be associated with altered neurodevelopment in children at 1 and 2years of age. In this study, we combined the measured maternal DDT/E concentrations during pregnancy obtained for the prospective birth cohort with predicted prenatal DDT and DDE levels estimated for a retrospective birth cohort. Using generalized estimating equation (GEE) and linear regression models, we evaluated the relationship of prenatal maternal DDT and DDE serum concentrations with children's cognition at ages 7 and 10.5years as assessed using the Full Scale Intelligence Quotient (IQ) and 4 subtest scores (Working Memory, Perceptual Reasoning, Verbal Comprehension, and Processing Speed) of the Wechsler Intelligence Scale for Children (WISC). In GEE analyses incorporating both age 7 and 10.5 scores (n=619), we found prenatal DDT and DDE levels were not associated with Full Scale IQ or any of the WISC subscales (p-value>0.05). In linear regression analyses assessing each time point separately, prenatal DDT levels were inversely associated with Processing Speed at age 7years (n=316), but prenatal DDT and DDE levels were not associated with Full Scale IQ or any of the WISC subscales at age 10.5years (n=595). We found evidence for effect modification by sex. In girls, but not boys, prenatal DDE levels were inversely associated with Full Scale IQ and Processing Speed at age 7years. We conclude that prenatal DDT levels may be associated with delayed Processing Speed in children at age 7years and the relationship between prenatal DDE levels and children's cognitive development may be modified by sex, with girls being more adversely affected.

Indexed as

Intelligence TestsCaliforniaChildChild DevelopmentCognitionCohort StudiesDDTDichlorodiphenyl DichloroethyleneFemaleHumansMaleMaternal ExposurePregnancyPrenatal Exposure Delayed EffectsProspective StudiesRetrospective StudiesDDTDichlorodiphenyl DichloroethyleneBack-extrapolationChildren's healthCognitive developmentEnvironmental exposuresPersistent organic pollutants

Identifiers

PMID26414943
PMCPMC5152618
OpenAlexW1790997304

What OpenQuestion holds

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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.