This slide deck introduces both the epidemiology and burden of epilepsy. Although epilepsy affects more than 50 million people worldwide, it was estimated that the majority (80%) of people living with epilepsy reside in low- and middle-income countries. Limitations of the existing studies indicate a need for additional epidemiological studies and the development of methods and systems for long-term surveillance of mortality in people with epilepsy.
This slide deck was developed by Professor Dr.  Nathalie Jetté, Department of Neurology, University of Calgary, AB, Canada; and Professor. Dr. Gretchen Birbeck, Rykenboer Professor of Neurology at the University of Rochester, New York, USA, in collaboration with Cambridge (a division of Prime, Cambridge, UK).

 

Index for
slide deck

Introduction

Introduction
Introduction
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Epidemiology of epilepsy

Epidemiology of epilepsy
Epidemiology of epilepsy
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Epilepsy is a common disorder with a substantial burden
Epilepsy is a common disorder with a substantial burden

In 2019, WHO published a snapshot of the global epidemiology and burden of epilepsy.1 Although epilepsy affects more than 50 million people worldwide, it was estimated that the majority reside in low- and middle-income countries.1 It was anticipated that the burden of epi…

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There are barriers to accurate estimation of epilepsy burden
There are barriers to accurate estimation of epilepsy burden

Under-recognition of epilepsy is an issue in low resource settings, with multiple factors involved.2,5,6 From the healthcare system perspective, the diagnosis of epilepsy may be delayed or missed due to inadequate healthcare provider training, and a lack of diagnostic too…

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Incidence and prevalence of epilepsy
Incidence and prevalence of epilepsy

This meta-analysis used data from >200 studies to estimate the incidence and prevalence of epilepsy.1 There was a substantial difference between LMICs and HICs with respect to the incidence of epilepsy –139 and 49 per 100,000 person-years respectively, as shown on the gra…

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Prevalence of idiopathic epilepsy by geographical region
Prevalence of idiopathic epilepsy by geographical region

The Global Burden of Disease (GBD) collaborators undertook a systematic analysis of epidemiological data published between 2011 and 2016 to determine the global and country-level prevalence of epilepsy between 1990 and 2016.1 As can be seen from the map, high prevalence o…

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Risk factors for epilepsy – low and middle-income countries
Risk factors for epilepsy – low and middle-income countries

Data for this analysis were provided by large population-based cross-sectional and case‒control studies conducted in regions within Kenya (2007‒2008), South Africa (2008‒2009), Uganda (2009), Tanzania (2009), and Ghana (2010‒2011).1 Only cases of active, convulsive epilep…

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The burden of epilepsy

The burden of epilepsy
The burden of epilepsy
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Quality of life in people with epilepsy
Quality of life in people with epilepsy

A cross-sectional German study including 476 people with epilepsy evaluated the determinants of the health-related quality of life (HRQoL) in people with epilepsy.1 Study findings showed that factors predictive of a significantly reduced HRQoL in people with epilepsy incl…

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Direct and indirect costs of epilepsy
Direct and indirect costs of epilepsy

A systematic review of epilepsy cost-of-illness studies was conducted, with adjustments made to generate single per-person and epilepsy-attributable total healthcare and indirect costs, and estimated costs for countries with missing data according to those of countries in…

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The epilepsy treatment gap
The epilepsy treatment gap

The ILAE Commission on the Developing World has defined the epilepsy treatment gap as the difference between the number of people with epilepsy and those who actually receive antiseizure medication.1 In a systematic review of 45 epidemiological studies, the estimated epil…

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Factors associated with drug-resistant epilepsy
Factors associated with drug-resistant epilepsy

In the same meta-analysis, 83 studies were analyzed to determine specific factors associated with drug-resistant epilepsy.1 With respect to polymorphisms in the ABC1 gene, C345T, C1234T, and G2677T were found to be statistically significant in multiple studies.1

Reference…

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Risk factors for SUDEP
Risk factors for SUDEP

The American Academy of Neurology and the American Epilepsy Society used two systematic searches of the literature: firstly for articles from the earliest available to November 2010, and this was repeated for articles published between November 2015 and April 2015 to info…

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Premature mortality associated with epilepsy in LMICs
Premature mortality associated with epilepsy in LMICs

In a systematic review, three studies from LMICs were identified that showed SMRs were highest in the youngest age groups, with a marked decline after early adulthood.1

Reference:

1.Levira F, Thurman DJ, Sander JW, et al. Premature mortality of epilepsy in low- and middle…

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Premature mortality in active convulsive epilepsy in Kenya
Premature mortality in active convulsive epilepsy in Kenya

This study was conducted in the Kilifi region of Kenya that covers a population of more than 233,800 people.1 At the first stage of the study a survey of the heads of households were asked 2 questions to identify potential family members with active convulsive epilepsy.1

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Premature mortality associated with epilepsy in HICs
Premature mortality associated with epilepsy in HICs

This systematic review assessed the SMR for people with epilepsy according to age category and time since diagnosis in HICs.1 Although the SMRs were higher in all groups of people with epilepsy, the highest were observed for individuals aged younger than 45 years (6.4‒8.5…

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