Evidence map›Paper›PMID 28841520›Full record

ArticleEnvironmental research2017

In utero exposure to DDT and incidence of diarrhea among boys from tropical Mexico.

Lea A Cupul-Uicab, Efraín A Terrazas-Medina, Mauricio Hernández-Ávila, Matthew P Longnecker

Abstract read
In one paragraph

Article in Environmental research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact, top 87% 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

3 citing papers in PubMed, 4 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

4 authors at 2 institutions in 2 countries.

Lea A Cupul-UicabCentro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos 62100, Mexico; Hospital Regional de Alta Especialidad de la Península de Yucatán, Mérida, Yucatán 97130, Mexico.
Efraín A Terrazas-MedinaCentro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos 62100, Mexico. Electronic address: alteramed@hotmail.com.
Mauricio Hernández-ÁvilaCentro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos 62100, Mexico.
Matthew P LongneckerEpidemiology Branch, National Institute of Environmental Health Sciences, NIH/DHHS/USA, Research Triangle Park, NC 27709, USA.
Instituto Nacional de Salud Pública · MXNational Institute of Environmental Health Sciences · US

Funding

Study of Health Effects of DDT in MexicoZIAES044009 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI SANDLER, DALE P · 2009 to 2017
$312k
Study of Health Effects of DDT in MexicoZ01ES044009 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI LONGNECKER, MATTHEW P · 2001 to 2008
$95k
Intramural NIH HHS Z01 ES044009
6 · The paper itself

Abstract

backgroundA higher incidence rate (IR) of acute gastrointestinal (GI) infections associated with prenatal exposure to p,p'-DDE was suggested by the results in two studies. Given the high mortality rate due to childhood diarrhea in some countries with ongoing use of DDT, additional data on this association is relevant for those making decisions about vector-borne disease control.

objectiveTo evaluate whether higher levels of prenatal exposure to p,p'-DDE and p,p'-DDT increase the risk of having diarrhea in a birth cohort of boys from tropical Mexico.

methodsOur analysis was based on 747 boys whose exposure was measured in maternal serum collected at delivery (2002-2003). Mothers reported the number of diarrhea episodes of their children during in-person interviews. The median age of the children at their last interview was 21.4 months. Poisson regression models were fitted to estimate adjusted incidence rate ratios (aIRR) of diarrhea by levels of p,p'-DDE and p,p'-DDT.

resultsOverall, there were 1.7 episodes of diarrhea per child-year. Among those in the highest category of exposure (> 9µg DDE/g serum lipid), the aIRR for diarrhea was 1.14 (95% CI: 0.94, 1.30) compared to those in the lowest category of exposure (≤ 3µg/g). Among boys living in the urban area, the corresponding aIRR was 1.39 (95% CI: 1.07-1.80). Among rural boys, no associations emerged.

conclusionAlthough the results were consistent with a small positive association, the overall estimate was not precise. While urban boys in this study appeared to be more susceptible to DDE-associated diarrhea, a ready explanation for such increased susceptibility was not apparent.

Indexed as

Maternal ExposureDDTDiarrheaDichlorodiphenyl DichloroethyleneEnvironmental PollutantsFemaleHumansIncidenceInfantInfant, NewbornInsecticidesMaleMexicoPregnancyPrenatal Exposure Delayed EffectsTropical ClimateDDTDichlorodiphenyl DichloroethyleneEnvironmental PollutantsInsecticidesBoysDiarrheap,p′-DDEp,p′-DDTPrenatal exposure

Identifiers

PMID28841520
PMCPMC5623652
OpenAlexW2754870349

What OpenQuestion holds

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LicenceTDM
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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.