Evidence map›Paper›PMID 29859090›Full record

ArticleBMC public health2018

Impact of the use and efficacy of long lasting insecticidal net on malaria infection during the first trimester of pregnancy - a pre-conceptional cohort study in southern Benin.

Cornélia Hounkonnou, Armel Djènontin, Seun Egbinola, Parfait Houngbegnon, Aziz Bouraima, Christophe Soares, Nadine Fievet, Manfred Accrombessi, Emmanuel Yovo, Valérie Briand and 1 more

Abstract readEvaluation Study
In one paragraph

Article in BMC public health, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

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  16. Dynamics of Submicroscopic Plasmodium falciparum Infections Throughout Pregnancy: A Preconception Cohort Study in Benin.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2020
    Article
  17. 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

11 authors.

Cornélia HounkonnouUMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, 75006, Paris, France. nellsmilia@yahoo.fr.ORCID 0000-0001-7058-496X
Armel DjènontinFaculté des Sciences et Techniques, Université d'Abomey-Calavi, Cotonou, Bénin.
Seun EgbinolaUniversity of Ibadan, Ibadan, Nigeria.
Parfait HoungbegnonCentre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Cotonou, Bénin.
Aziz BouraimaCentre de Recherche Entomologique de Cotonou, Cotonou, Benin.
Christophe SoaresCentre de Recherche Entomologique de Cotonou, Cotonou, Benin.
Nadine FievetUMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, 75006, Paris, France.
Manfred AccrombessiUMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, 75006, Paris, France.
Emmanuel YovoCentre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Cotonou, Bénin.
Valérie BriandUMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, 75006, Paris, France.
Gilles CottrellUMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, 75006, Paris, France. gilles.cottrell@ird.fr.

Funding

Agence Nationale de la Recherche ANR-13JSV1-004-01Expertise France- Initiative 5% 15SANIN110
6 · The paper itself

Abstract

backgroundMalaria in pregnancy is prevalent in Sub-Saharan Africa. The first trimester of pregnancy is a critical period and the best preventive measure is Long Lasting Insecticidal Nets (LLIN). Unfortunately, few studies have been conducted which focuses on the usage and efficacy of LLIN on malaria prevention during the first trimester.

methodsWe assessed the use and effectiveness of LLIN in early pregnancy in Benin and its impact on malaria infection risk. We followed-up a cohort of 240 pregnant women from pre-conception to the end of the first trimester of pregnancy in Southern Benin. Parasitological, maternal and LLIN data were actively collected before, at the beginning and end of the first trimester of pregnancy. A Cox regression model was used to determine the relationship between the time to onset of the first malaria infection and the use, physical integrity, and bio-efficacy of the LLIN, adjusted for relevant covariables.

resultsThe good use, good physical integrity and biological efficacy of LLIN were associated with a decreased risk of occurrence of the first malaria infection in early pregnancy (HRa = 0.38; (0.18-0.80); p < 0.001; HRa = 0.59; (0.29-1.19); p < 0.07; HRa = 0.97; (0.94-1.00); p < 0.04 respectively), after adjustment for other covariates. Primi/secundigravidity and malaria infection before pregnancy were associated with a risk of earlier onset of malaria infection.

conclusionThe classically used LLIN's indicators of possession and use may not be sufficient to characterize the true protection of pregnant women in the first trimester of pregnancy. Indicators of physical integrity and bio-efficacy should be integrated with those indicators in evaluation studies.

Indexed as

Pregnancy Trimester, FirstAdultBeninCohort StudiesFemaleHumansInsecticidesInsecticide-Treated BednetsMalariaMosquito ControlOwnershipPregnancyPregnancy Complications, InfectiousYoung AdultInsecticidesBiological efficacy indicatorFirst trimesterGestational malariaLong lasting impregnated netsPhysical integrity indicatorUse

Identifiers

PMID29859090
PMCPMC5984809

What OpenQuestion holds

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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.