Evidence map›Paper›PMID 28892575›Full record

Trial reportPediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology2017

Effects of treating helminths during pregnancy and early childhood on risk of allergy-related outcomes: Follow-up of a randomized controlled trial.

Benigna Namara, Stephen Nash, Swaib A Lule, Hellen Akurut, Harriet Mpairwe, Florence Akello, Josephine Tumusiime, Moses Kizza, Joyce Kabagenyi, Gyaviira Nkurunungi and 4 more

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 13% 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, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Trial
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  4. Effects of treating helminths during pregnancy and early childhood on risk of allergy-related outcomes: Follow-up of a randomized controlled trial.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2017
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  8. Article
  9. Article
  10. Observational
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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

14 authors at 3 institutions in 2 countries.

Benigna NamaraMRC/UVRI Uganda Research Unit, Entebbe, Uganda.
Stephen NashLondon School of Hygiene and Tropical Medicine, London, UK.ORCID http://orcid.org/0000-0003-2086-1740
Swaib A LuleMRC/UVRI Uganda Research Unit, Entebbe, Uganda.ORCID http://orcid.org/0000-0002-6271-2033
Hellen AkurutMRC/UVRI Uganda Research Unit, Entebbe, Uganda.
Harriet MpairweMRC/UVRI Uganda Research Unit, Entebbe, Uganda.
Florence AkelloMRC/UVRI Uganda Research Unit, Entebbe, Uganda.
Josephine TumusiimeEntebbe Hospital, Entebbe, Uganda.
Moses KizzaMRC/UVRI Uganda Research Unit, Entebbe, Uganda.
Joyce KabagenyiMRC/UVRI Uganda Research Unit, Entebbe, Uganda.
Gyaviira NkurunungiMRC/UVRI Uganda Research Unit, Entebbe, Uganda.ORCID http://orcid.org/0000-0003-4062-9105
Lawrence MuhangiMRC/UVRI Uganda Research Unit, Entebbe, Uganda.
Emily L WebbLondon School of Hygiene and Tropical Medicine, London, UK.
Moses MuwangaEntebbe Hospital, Entebbe, Uganda.
Alison M ElliottMRC/UVRI Uganda Research Unit, Entebbe, Uganda.
Uganda Virus Research Institute · UGLondon School of Hygiene & Tropical Medicine · GBMinistry of Agriculture, Animal Industry and Fisheries · UG

Funding

Medical Research Council MR/K012126/1Wellcome Trust 064693Wellcome Trust 079110Wellcome Trust 102512Wellcome Trust 95778
6 · The paper itself

Abstract

backgroundHelminth infections, common in low-income countries, may protect against allergy-related disease. Early exposure may be a key. In the Entebbe Mother and Baby Study, treating helminths during pregnancy resulted in increased eczema rates in early childhood. We followed the cohort to determine whether this translated to increased asthma rates at school age.

methodsThis randomized, double-blind, placebo-controlled trial, conducted in Entebbe, Uganda, had three interventions. During pregnancy, women were randomized, simultaneously, to albendazole vs placebo and to praziquantel vs placebo. Their children were independently randomized to quarterly albendazole vs placebo from age 15 months to 5 years. We here report follow-up to age 9 years. Primary outcomes at 9 years were recent reported wheeze, skin prick test positivity (SPT) to common allergens and allergen-specific IgE positivity to dust mite or cockroach. Secondary outcomes were doctor-diagnosed asthma and eczema rates between 5 and 9 years, recent eczema, rhinitis and urticaria at 9 years, and SPT and IgE responses to individual allergens.

results2507 pregnant women were enrolled; 1215 children were seen at age nine, of whom 1188 are included in this analysis. Reported wheeze was rare at 9 years (3.7%) while SPT positivity (25.0%) and IgE positivity (44.1%) were common. There was no evidence of a treatment effect for any of the three interventions on any of the primary outcomes.

conclusionsPrenatal and early-life treatment of helminths, in the absence of change in other exposures, is unlikely to increase the risk of atopic diseases later in childhood in this tropical, low-income setting.

Indexed as

AlbendazoleAnthelminticsAsthmaChildChild, PreschoolDouble-Blind MethodFemaleFollow-Up StudiesHelminthiasisHumansInfantMalePraziquantelPregnancyPregnancy Complications, ParasiticPrenatal Exposure Delayed EffectsAlbendazoleAnthelminticsPraziquantelalbendazoleasthmaatopyeczemahelminthIgEpraziquantelprenatalschool agewheeze

Identifiers

PMID28892575
PMCPMC5765453
OpenAlexW2756378941

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.