Evidence map›Paper›PMID 30036731›Full record

ArticleEnvironment international2018

Early-life exposure to p,p'-DDT and p,p'-DDE in South African children participating in the VHEMBE study: An assessment using repeated serum measurements and pharmacokinetic modeling.

Marc-André Verner, Jonathan Chevrier, Gérard Ngueta, Stephen Rauch, Riana Bornman, Brenda Eskenazi

Open access · greenAbstract read
In one paragraph

Article in Environment international, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 39% 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

6 citing papers in PubMed, 15 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 4 institutions in 3 countries.

Marc-André VernerUniversité de Montréal Public Health Research Institute (IRSPUM), Montreal, QC, Canada; Department of Occupational and Environmental Health, School of Public Health, Université de Montréal, Montreal, QC, Canada. Electronic address: marc-andre.verner.1@umontreal.ca.
Jonathan ChevrierDepartment of Epidemiology, Biostatistics and Occupational Health, Faculty of Medicine, McGill University, Montreal, QC, Canada.
Gérard NguetaUniversité de Montréal Public Health Research Institute (IRSPUM), Montreal, QC, Canada; Department of Occupational and Environmental Health, School of Public Health, Université de Montréal, Montreal, QC, Canada.
Stephen RauchCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, CA, USA.
Riana BornmanSchool of Health Systems and Public Health, University of Pretoria, Pretoria, South Africa; University of Pretoria Institute for Sustainable Malaria Control, University of Pretoria, Pretoria, South Africa.
Brenda EskenaziCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, CA, USA.
Center for Environmental Health · USUniversité de Montréal · CAMcGill University · CAUniversity of Pretoria · ZA

Funding

IRS insecticides for malaria control and child neurodevelopment in South AfricaR01ES020360 · NIEHS · UNIVERSITY OF CALIFORNIA BERKELEY · PI ESKENAZI, BRENDA · 2011 to 2015
$3.7M
NIEHS NIH HHS R01 ES020360
6 · The paper itself

Abstract

backgroundThe World Health Organization recommends indoor residual spraying (IRS) of insecticides (including dichlorodiphenyltrichloroethane [DDT]) to fight malaria vectors in endemic countries. There is limited information on children's exposure to DDT in sprayed areas, and tools to estimate early-life exposure have not been thoroughly evaluated in this context.

objectivesTo document serum p,p'-DDT/E levels in 47 mothers and children participating in the Venda Health Examination of Mothers, Babies and their Environment (VHEMBE), a study conducted in an area where IRS insecticides are used annually, and to evaluate the precision and accuracy of a published pharmacokinetic model for the estimation of children's p,p'-DDT/E levels.

methodsp,p'-DDT/E levels were measured in maternal serum at delivery, and in children's serum at 12 and 24 months of age. A pharmacokinetic model of gestational and lactational exposure was used to estimate children's p,p'-DDT/E levels during pregnancy and the first two years of life, and estimated levels were compared to measured levels.

resultsThe geometric means of children's serum p,p'-DDT/E levels at 12 and 24 months were higher than those of maternal serum levels. Regression models of measured children's p,p'-DDT/E levels vs. levels estimated with the pharmacokinetic model (which only accounted for children's exposure through placental transfer and breastfeeding) had coefficients of determination (R

conclusionResults indicate that children living in a sprayed area have serum p,p'-DDT/E levels exceeding their mothers' during the first two years of life. The pharmacokinetic model may be useful to estimate children's levels in the VHEMBE population.

Indexed as

Models, BiologicalAdolescentAdultBlack PeopleBreast FeedingChild, PreschoolDDTDichlorodiphenyl DichloroethyleneEnvironmental MonitoringFemaleHumansInfantInsecticidesMaleMaternal ExposureMothersDDTDichlorodiphenyl DichloroethyleneInsecticides

Identifiers

PMID30036731
PMCPMC6150710
OpenAlexW2883371875

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.