Evidence map›Paper›PMID 30971305›Full record

ArticleParasites & vectors2019

Risk factors for lymphatic filariasis in two villages of the Democratic Republic of the Congo.

Cédric B Chesnais, Naomi-Pitchouna Awaca-Uvon, Johnny Vlaminck, Jean-Paul Tambwe, Gary J Weil, Sébastien D Pion, Michel Boussinesq

Abstract read
In one paragraph

Article in Parasites & vectors, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
–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

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Clinical Manifestations of Lymphatic Filariasis and Practice of Vector Control Measures after 15 Years of Mass Drug Administration: A Rapid Epidemiological Study from Odisha.Indian journal of community medicine : official publication of Indian Association of Preventive & Social Medicine · 2025
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  7. Prevalence of elephantiasis, an overlooked disease in Southern Africa: a comprehensive review.The journal of venomous animals and toxins including tropical diseases · 2024
    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

7 authors.

Cédric B ChesnaisIRD UMI 233, INSERM U1175, Université de Montpellier, Unité TransVIHMI, 911 Avenue Agropolis, P.O. Box 64501, 34394, Montpellier, France. cedric.chesnais@ird.fr.
Naomi-Pitchouna Awaca-UvonProgramme National de Lutte contre les Maladies Tropicales Négligées à Chimiothérapie Préventive, Ministère de la Santé Publique, 36, Avenue de la Justice, C/Gombe, Kinshasa, Democratic Republic of the Congo.
Johnny VlaminckDepartment of Virology, Parasitology and Immunology, Ghent University, Merelbeke, Belgium.
Jean-Paul TambweProgramme National de Lutte contre les Maladies Tropicales Négligées à Chimiothérapie Préventive, Ministère de la Santé Publique, 36, Avenue de la Justice, C/Gombe, Kinshasa, Democratic Republic of the Congo.
Gary J WeilInfectious Diseases Division, Department of Internal Medicine, Washington University School of Medicine, 660 S. Euclid Ave., Campus Box 8051, St. Louis, MO, USA.
Sébastien D PionIRD UMI 233, INSERM U1175, Université de Montpellier, Unité TransVIHMI, 911 Avenue Agropolis, P.O. Box 64501, 34394, Montpellier, France.
Michel BoussinesqIRD UMI 233, INSERM U1175, Université de Montpellier, Unité TransVIHMI, 911 Avenue Agropolis, P.O. Box 64501, 34394, Montpellier, France.

Funding

Bill and Melinda Gates Foundation GH5342
6 · The paper itself

Abstract

backgroundLittle is known regarding risk factors for lymphatic filariasis (LF) in Central Africa. To expand on what is known, we studied the epidemiology of LF in two endemic villages in the Democratic Republic of the Congo.

methodsDependent variables were Wuchereria bancrofti antigenaemia detected with filarial test strips (FTS) and microfilaraemia detected by night blood smears. The following factors were investigated: sex, age, the use of bednets, the use of latrines, hunting, fishing and agricultural activities, history of treatment with anthelmintic drugs, overnight stays in the bush, population density, the number of household members, and distance to rivers. Mixed multivariate logistic regression models were used.

resultsTwo hundred and fifty nine out of 820 (31.6%) of subjects aged ≥ 5 years had W. bancrofti antigenaemia and 11.8% (97/820) had microfilaraemia. Multivariable analysis of risk factors for antigenaemia demonstrated increased risk for males (aOR = 1.75, 95% CI: 1.20-2.53, P = 0.003), for older individuals (aOR = 9.12 in those aged > 35 years, 95% CI: 4.47-18.61, P < 0.001), for people not using bednets (aOR = 1.57, 95% CI: 1.06-2.33, P = 0.023), for farmers (aOR = 2.21, 95% CI: 1.25-3.90, P = 0.006), and for those who live close to a river (aOR = 2.78, 95% CI: 1.14-6.74, P = 0.024). Significant risk factors for microfilaraemia included age, male gender, overnight stay in the bush, and residence close to a river (aOR = 1.86, 2.01, 2.73; P = 0.011, 0.010, 0.041; for the three latter variables, respectively). People who reported having taken levamisole (n = 117) during the prior year had a significantly decreased risk of having filarial antigenaemia (aOR = 0.40, 95% CI: 0.21-0.76, P = 0.005).

conclusionsAge, sex, not using bednets, and occupation-dependent exposure to mosquitoes were important risk factors for infection with W. bancrofti in this study. The association with levamisole use suggests that the drug may have prevented filarial infections. Other results suggest that transmission often occurs outside of the village. This study provides interesting clues regarding the epidemiology of LF in Central Africa.

Indexed as

AdolescentAdultAgedChildChild, PreschoolDemocratic Republic of the CongoElephantiasis, FilarialFemaleHumansMaleMiddle AgedMosquito NetsOccupational ExposureRisk FactorsSex FactorsYoung AdultAfricaBednetsCommunity studyCongoEpidemiologyFilariasisLymphatic filariasisRisk factors

Identifiers

PMID30971305
PMCPMC6458702

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.