Epilepsy in onchocerciasis endemic areas: systematic review and meta-analysis of population-based surveys.

<h4>Objective</h4>We sought to evaluate the relationship between onchocerciasis prevalence and that of epilepsy using available data collected at community level.<h4>Design</h4>We conducted a systematic review and meta-regression of available data.<h4>Data sources</h...

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Main Authors: Sébastien D S Pion, Christoph Kaiser, Fernand Boutros-Toni, Amandine Cournil, Melanie M Taylor, Stefanie E O Meredith, Ansgar Stufe, Ione Bertocchi, Walter Kipp, Pierre-Marie Preux, Michel Boussinesq
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2009-06-01
Series:PLoS Neglected Tropical Diseases
Online Access:https://doi.org/10.1371/journal.pntd.0000461
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author Sébastien D S Pion
Christoph Kaiser
Fernand Boutros-Toni
Amandine Cournil
Melanie M Taylor
Stefanie E O Meredith
Ansgar Stufe
Ione Bertocchi
Walter Kipp
Pierre-Marie Preux
Michel Boussinesq
author_facet Sébastien D S Pion
Christoph Kaiser
Fernand Boutros-Toni
Amandine Cournil
Melanie M Taylor
Stefanie E O Meredith
Ansgar Stufe
Ione Bertocchi
Walter Kipp
Pierre-Marie Preux
Michel Boussinesq
author_sort Sébastien D S Pion
collection DOAJ
description <h4>Objective</h4>We sought to evaluate the relationship between onchocerciasis prevalence and that of epilepsy using available data collected at community level.<h4>Design</h4>We conducted a systematic review and meta-regression of available data.<h4>Data sources</h4>Electronic and paper records on subject area ever produced up to February 2008.<h4>Review methods</h4>We searched for population-based studies reporting on the prevalence of epilepsy in communities for which onchocerciasis prevalence was available or could be estimated. Two authors independently assessed eligibility and study quality and extracted data. The estimation of point prevalence of onchocerciasis was standardized across studies using appropriate correction factors. Variation in epilepsy prevalence was then analyzed as a function of onchocerciasis endemicity using random-effect logistic models.<h4>Results</h4>Eight studies from west (Benin and Nigeria), central (Cameroon and Central African Republic) and east Africa (Uganda, Tanzania and Burundi) met the criteria for inclusion and analysis. Ninety-one communities with a total population of 79,270 individuals screened for epilepsy were included in the analysis. The prevalence of epilepsy ranged from 0 to 8.7% whereas that of onchocerciasis ranged from 5.2 to 100%. Variation in epilepsy prevalence was consistent with a logistic function of onchocerciasis prevalence, with epilepsy prevalence being increased, on average, by 0.4% for each 10% increase in onchocerciasis prevalence.<h4>Conclusion</h4>These results give further evidence that onchocerciasis is associated with epilepsy and that the disease burden of onchocerciasis might have to be re-estimated by taking into account this relationship.
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spelling doaj-art-abc52c3bd9c34df5a7f80785e25fe7542025-08-20T03:24:02ZengPublic Library of Science (PLoS)PLoS Neglected Tropical Diseases1935-27271935-27352009-06-0136e46110.1371/journal.pntd.0000461Epilepsy in onchocerciasis endemic areas: systematic review and meta-analysis of population-based surveys.Sébastien D S PionChristoph KaiserFernand Boutros-ToniAmandine CournilMelanie M TaylorStefanie E O MeredithAnsgar StufeIone BertocchiWalter KippPierre-Marie PreuxMichel Boussinesq<h4>Objective</h4>We sought to evaluate the relationship between onchocerciasis prevalence and that of epilepsy using available data collected at community level.<h4>Design</h4>We conducted a systematic review and meta-regression of available data.<h4>Data sources</h4>Electronic and paper records on subject area ever produced up to February 2008.<h4>Review methods</h4>We searched for population-based studies reporting on the prevalence of epilepsy in communities for which onchocerciasis prevalence was available or could be estimated. Two authors independently assessed eligibility and study quality and extracted data. The estimation of point prevalence of onchocerciasis was standardized across studies using appropriate correction factors. Variation in epilepsy prevalence was then analyzed as a function of onchocerciasis endemicity using random-effect logistic models.<h4>Results</h4>Eight studies from west (Benin and Nigeria), central (Cameroon and Central African Republic) and east Africa (Uganda, Tanzania and Burundi) met the criteria for inclusion and analysis. Ninety-one communities with a total population of 79,270 individuals screened for epilepsy were included in the analysis. The prevalence of epilepsy ranged from 0 to 8.7% whereas that of onchocerciasis ranged from 5.2 to 100%. Variation in epilepsy prevalence was consistent with a logistic function of onchocerciasis prevalence, with epilepsy prevalence being increased, on average, by 0.4% for each 10% increase in onchocerciasis prevalence.<h4>Conclusion</h4>These results give further evidence that onchocerciasis is associated with epilepsy and that the disease burden of onchocerciasis might have to be re-estimated by taking into account this relationship.https://doi.org/10.1371/journal.pntd.0000461
spellingShingle Sébastien D S Pion
Christoph Kaiser
Fernand Boutros-Toni
Amandine Cournil
Melanie M Taylor
Stefanie E O Meredith
Ansgar Stufe
Ione Bertocchi
Walter Kipp
Pierre-Marie Preux
Michel Boussinesq
Epilepsy in onchocerciasis endemic areas: systematic review and meta-analysis of population-based surveys.
PLoS Neglected Tropical Diseases
title Epilepsy in onchocerciasis endemic areas: systematic review and meta-analysis of population-based surveys.
title_full Epilepsy in onchocerciasis endemic areas: systematic review and meta-analysis of population-based surveys.
title_fullStr Epilepsy in onchocerciasis endemic areas: systematic review and meta-analysis of population-based surveys.
title_full_unstemmed Epilepsy in onchocerciasis endemic areas: systematic review and meta-analysis of population-based surveys.
title_short Epilepsy in onchocerciasis endemic areas: systematic review and meta-analysis of population-based surveys.
title_sort epilepsy in onchocerciasis endemic areas systematic review and meta analysis of population based surveys
url https://doi.org/10.1371/journal.pntd.0000461
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