Evidence map›Paper›PMID 29713463›Full record

Trial reportJournal of global health2018

Zinc as an adjunct therapy in the management of severe pneumonia among Gambian children: randomized controlled trial.

Stephen Howie, Christian Bottomley, Osaretin Chimah, Readon Ideh, Bernard Ebruke, Uduak Okomo, Charles Onyeama, Simon Donkor, Onike Rodrigues, Mary Tapgun and 12 more

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of global health, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 3 pooled it
1.4field-weighted citation impact, top 21% 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, 3 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Pooled it
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  8. Natural Ingredients to Improve Immunity.Pharmaceuticals (Basel, Switzerland) · 2023
    Review
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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

22 authors at 5 institutions in 4 countries.

Stephen HowieMedical Research Council Unit The Gambia, Fajara, Gambia.
Christian BottomleyLondon School of Hygiene and Tropical Medicine, London, UK.
Osaretin ChimahMedical Research Council Unit The Gambia, Fajara, Gambia.
Readon IdehMedical Research Council Unit The Gambia, Fajara, Gambia.
Bernard EbrukeMedical Research Council Unit The Gambia, Fajara, Gambia.
Uduak OkomoMedical Research Council Unit The Gambia, Fajara, Gambia.
Charles OnyeamaMedical Research Council Unit The Gambia, Fajara, Gambia.
Simon DonkorMedical Research Council Unit The Gambia, Fajara, Gambia.
Onike RodriguesEdward Frances Small Teaching Hospital, Banjul, Gambia.
Mary TapgunMedical Research Council Unit The Gambia, Fajara, Gambia.
Marie JannehMedical Research Council Unit The Gambia, Fajara, Gambia.
Claire OluwalanaMedical Research Council Unit The Gambia, Fajara, Gambia.
Bankole KutiMedical Research Council Unit The Gambia, Fajara, Gambia.
Godwin EnwereMedical Research Council Unit The Gambia, Fajara, Gambia.
Pamela EsangbedoEdward Frances Small Teaching Hospital, Banjul, Gambia.
Conor DohertyMedical Research Council Unit The Gambia, Fajara, Gambia.
Grant MackenzieMedical Research Council Unit The Gambia, Fajara, Gambia.
Brian GreenwoodLondon School of Hygiene and Tropical Medicine, London, UK.
Tumani CorrahMedical Research Council Unit The Gambia, Fajara, Gambia.
Andrew PrenticeMedical Research Council Unit The Gambia, Fajara, Gambia.
Richard AdegbolaMedical Research Council Unit The Gambia, Fajara, Gambia.
Syed ZamanMedical Research Council Unit The Gambia, Fajara, Gambia.
MRC Unit the Gambia · GMEdward Francis Small Teaching Hospital · GMLondon School of Hygiene & Tropical Medicine · GBLiverpool School of Tropical Medicine · GBMurdoch Children's Research Institute · AU

Funding

Medical Research Council MC_U190081970Medical Research Council MC_U190088478Medical Research Council MC_U190088484Medical Research Council MC_UP_A900_1124Medical Research Council MR/K012126/1
6 · The paper itself

Abstract

backgroundThe benefit of zinc as an adjunct therapy for severe pneumonia is not established. We assessed the benefit of adjunct zinc therapy for severe pneumonia in children and determined whether the study children were zinc deficient.

methodsThis was a randomized, parallel group, double-blind, placebo-controlled trial with an allocation ratio of 1:1 conducted in children with severe pneumonia to evaluate the efficacy of daily zinc as an adjunct treatment in preventing 'treatment failure' (presence of any sign of severe pneumonia) on day-5 and day-10 and in reducing the time to resolution of signs of severe pneumonia. Six hundred and four children 2-59 months of age presenting with severe pneumonia at six urban and rural health care facilities in The Gambia were individually randomised to receive placebo (n = 301) or zinc (n = 303) for seven days. To determine if the study children were zinc deficient, supplementation was continued in a randomly selected subgroup of 121 children from each arm for six months post-enrolment, and height-gain, nutritional status, plasma zinc concentrations, and immune competence were compared.

resultsPercentage of treatment failure were similar in placebo and zinc arms both on day 5 (14.0% vs 14.1%) and day 10 (5.2% vs 5.9%). The time to recovery from lower chest wall indrawing and sternal retraction was longer in the placebo compared to zinc arm (24.4 vs 23.0 hours;

conclusionsIn this population, zinc given as an adjunct treatment for severe pneumonia showed no benefit in treatment failure rates, or clinically important benefit in time to recovery from respiratory symptoms and showed marginal benefit in rapidity of resolution of some signs of severity. This finding does not support routine use of zinc as an adjunct treatment in severe pneumonia in generally zinc replete children.

trial registrationISRCTN33548493.

Indexed as

Severity of Illness IndexAdjuvants, PharmaceuticChildChild, PreschoolDouble-Blind MethodFemaleGambiaHumansInfantMalePneumoniaTreatment OutcomeZincAdjuvants, PharmaceuticZinc

Identifiers

PMID29713463
PMCPMC5908397
OpenAlexW2800225453

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.