Evidence map›Paper›PMID 24875312›Full record

ArticlePLoS neglected tropical diseases2014

Exposure to multiple parasites is associated with the prevalence of active convulsive epilepsy in sub-Saharan Africa.

Gathoni Kamuyu, Christian Bottomley, James Mageto, Brett Lowe, Patricia P Wilkins, John C Noh, Thomas B Nutman, Anthony K Ngugi, Rachael Odhiambo, Ryan G Wagner and 8 more

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 5 pooled it
6.4field-weighted citation impact, top 2% 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

56 citing papers in PubMed, 5 syntheses or guidelines pooled it, 91 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Prevalence of Epilepsy, Human Cysticercosis, and Porcine Cysticercosis in Western Kenya.The American journal of tropical medicine and hygiene · 2022
    Article
  17. Epileptogenesis in Common Parasitic Infections.Current neurology and neuroscience reports · 2022
    Review
  18. Article
  19. Article
  20. Article
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

18 authors at 12 institutions in 10 countries.

Gathoni KamuyuKEMRI/Wellcome Trust Research Programme, The Centre of Geographical Medicine Research - Coast, Kilifi, Kenya; Studies of the Epidemiology of Epilepsy in Demographic Surveillance Systems (SEEDS)-INDEPTH Network, Accra, Ghana.
Christian BottomleyDepartment of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom; MRC Tropical Epidemiology Group, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom; Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom.
James MagetoKEMRI/Wellcome Trust Research Programme, The Centre of Geographical Medicine Research - Coast, Kilifi, Kenya; Egerton University, Nakuru, Kenya.
Brett LoweKEMRI/Wellcome Trust Research Programme, The Centre of Geographical Medicine Research - Coast, Kilifi, Kenya; Studies of the Epidemiology of Epilepsy in Demographic Surveillance Systems (SEEDS)-INDEPTH Network, Accra, Ghana; Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom.
Patricia P WilkinsDivision of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia, United States of America.
John C NohDivision of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia, United States of America.
Thomas B NutmanLaboratory of Parasitic Diseases. National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America.
Anthony K NgugiKEMRI/Wellcome Trust Research Programme, The Centre of Geographical Medicine Research - Coast, Kilifi, Kenya; Studies of the Epidemiology of Epilepsy in Demographic Surveillance Systems (SEEDS)-INDEPTH Network, Accra, Ghana; Research Support Unit, Faculty of Health Sciences, Aga Khan University (East Africa), Nairobi, Kenya.
Rachael OdhiamboKEMRI/Wellcome Trust Research Programme, The Centre of Geographical Medicine Research - Coast, Kilifi, Kenya.
Ryan G WagnerMRC/Wits Rural Public Health & Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Epidemiology and Public Health, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden.
Angelina Kakooza-MwesigeStudies of the Epidemiology of Epilepsy in Demographic Surveillance Systems (SEEDS)-INDEPTH Network, Accra, Ghana; Iganga-Mayuge Health and Demographic Surveillance System, Iganga, Uganda; Department of Paediatrics and Child Health, Makerere University College of Health Sciences, Kampala, Uganda.
Seth Owusu-AgyeiKintampo Health Research Centre, Kintampo, Ghana.
Kenneth Ae-NgibiseKintampo Health Research Centre, Kintampo, Ghana.
Honorati MasanjaIfakara Health Institute, Ifakara, Tanzania.
Faith H A OsierKEMRI/Wellcome Trust Research Programme, The Centre of Geographical Medicine Research - Coast, Kilifi, Kenya.
Peter OdermattSwiss Tropical and Public Health Institute, Basel, Switzerland; Unversity of Basel, Basel, Switzerland.
Charles R NewtonKEMRI/Wellcome Trust Research Programme, The Centre of Geographical Medicine Research - Coast, Kilifi, Kenya; Studies of the Epidemiology of Epilepsy in Demographic Surveillance Systems (SEEDS)-INDEPTH Network, Accra, Ghana; Neurosciences Unit, UCL Institute of Child Health, London, United Kingdom; Clinical Research Unit, London School of Hygiene and Tropical Medicine, London, United Kingdom; Department of Psychiatry, University of Oxford, Oxford, United Kingdom.
Study of Epidemiology of Epilepsy in Demographic Sites (SEEDS) group
Kenya Medical Research Institute · KEDivision of Parasitic Diseases and Malaria · USKintampo Health Research Centre · GHAga Khan University · PKEgerton University · KEIfakara Health Institute · TZIndepth Network · GHLondon School of Hygiene & Tropical Medicine · GBMakerere University · UGNational Institute of Allergy and Infectious Diseases · USUniversity of Basel · CHUniversity of the Witwatersrand · ZA

Funding

Clinical And Therapeutic Studies Of Human Filariasis and Related DiseasesZIAAI000439 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI NUTMAN, THOMAS · 2009 to 2025
$14.8M
Medical Research Council MR/K012126/1Wellcome Trust 083744Wellcome Trust 084538Wellcome Trust 092654Wellcome Trust 095009Wellcome Trust 096392
6 · The paper itself

Abstract

backgroundEpilepsy is common in developing countries, and it is often associated with parasitic infections. We investigated the relationship between exposure to parasitic infections, particularly multiple infections and active convulsive epilepsy (ACE), in five sites across sub-Saharan Africa. METHODS AND

findingsA case-control design that matched on age and location was used. Blood samples were collected from 986 prevalent cases and 1,313 age-matched community controls and tested for presence of antibodies to Onchocerca volvulus, Toxocara canis, Toxoplasma gondii, Plasmodium falciparum, Taenia solium and HIV. Exposure (seropositivity) to Onchocerca volvulus (OR = 1.98; 95%CI: 1.52-2.58, p<0.001), Toxocara canis (OR = 1.52; 95%CI: 1.23-1.87, p<0.001), Toxoplasma gondii (OR = 1.28; 95%CI: 1.04-1.56, p = 0.018) and higher antibody levels (top tertile) to Toxocara canis (OR = 1.70; 95%CI: 1.30-2.24, p<0.001) were associated with an increased prevalence of ACE. Exposure to multiple infections was common (73.8% of cases and 65.5% of controls had been exposed to two or more infections), and for T. gondii and O. volvulus co-infection, their combined effect on the prevalence of ACE, as determined by the relative excess risk due to interaction (RERI), was more than additive (T. gondii and O. volvulus, RERI = 1.19). The prevalence of T. solium antibodies was low (2.8% of cases and 2.2% of controls) and was not associated with ACE in the study areas.

conclusionThis study investigates how the degree of exposure to parasites and multiple parasitic infections are associated with ACE and may explain conflicting results obtained when only seropositivity is considered. The findings from this study should be further validated.

Indexed as

EpilepsyParasitic DiseasesAdolescentAdultAfrica South of the SaharaAntibodies, HelminthAntibodies, ProtozoanCase-Control StudiesChildChild, PreschoolFemaleHumansInfantMaleMiddle AgedPrevalenceAntibodies, HelminthAntibodies, Protozoan

Identifiers

PMID24875312
PMCPMC4038481
OpenAlexW2130153120

What OpenQuestion holds

Textmetadata
LicenceCC0
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.