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Prevalence and risk factors for active convulsive epilepsy in rural northeast South Africa
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Epidemiology and Global Health.
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2014 (English)In: Epilepsy Research, ISSN 0920-1211, E-ISSN 1872-6844, Vol. 108, no 4, 782-791 p.Article in journal (Refereed) Published
Abstract [en]

Rationale: Epilepsy is among the most common neurological disorders there are few large, population-based studies of the prevalence and risk southern Africa. Methods: From August 2008 to February 2009, as part of a multi-site study, we undertook a three-stage, population-based study, embedded within the Agincourt health and socio-demographic surveillance system, to estimate the prevalence and identify risk factors of active convulsive epilepsy (ACE) in a rural South African population. Results: The crude prevalence of ACE, after adjusting for non-response and the sensitivity of the screening method, was 7.0/1,000 individuals (95%CI 6.4-7.6) with significant geographic heterogeneity across the study area. Being male (OR= 2.3; 95%CI 1.6-3.2), family history of seizures (OR =4.0; 95%CI 2.0-8.1), a sibling with seizures (OR = 7.0; 95%CI 1.6-31.7), problems after delivery (OR= 5.9; 95%CI 1.2-24.6), and history of snoring (OR =6.5; 95%CI 4.5-9.5) were significantly associated with ACE. For children, their mother's exposure to some formal schooling was protective (OR = 0.30; 95%CI 0.11-0.84) after controlling for age and sex. Human immunodeficiency virus was not found to be associated with ACE. Conclusions: ACE is less frequent in this part of rural South Africa than other parts of sub-Saharan Africa. Improving obstetric services could prevent epilepsy. The relationship between snoring and ACE requires further investigation, as does the relative contribution of genetic and environmental factors to examine the increased risk in those with a family history of epilepsy. (C) 2014 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2014. Vol. 108, no 4, 782-791 p.
Keyword [en]
Epilepsy, Prevalence, Case-control, Risk factors, Population-based
National Category
Public Health, Global Health, Social Medicine and Epidemiology
URN: urn:nbn:se:umu:diva-90077DOI: 10.1016/j.eplepsyres.2014.01.004ISI: 000335623100021OAI: diva2:727901
Available from: 2014-06-23 Created: 2014-06-17 Last updated: 2014-06-23Bibliographically approved

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Wagner, Ryan G.Collinson, Mark A.Kahn, KathleenTollman, Stephen
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