Prevalence and risk factors for autism spectrum disorder in epilepsy: a systematic review and meta‐analysis

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Title: Prevalence and risk factors for autism spectrum disorder in epilepsy: a systematic review and meta‐analysis
Authors: Strasser, Lauren
Downes, Michelle
Kung, Jane
et al.
Permanent link: http://hdl.handle.net/10197/10628
Date: 9-Nov-2017
Online since: 2019-05-23T08:44:34Z
Abstract: Aim: To assess the prevalence and risk factors for autism spectrum disorder (ASD) in epilepsy, and to better understand the relationship and comorbidity between these disorders. Method: PsychINFO and PubMed were searched for articles published in the past 15 years that examined the prevalence of ASD in individuals with epilepsy. Results: A total of 19 studies were found with a pooled ASD prevalence of 6.3% in epilepsy. When divided by type, the risks of ASD for general epilepsy, infantile spasms, focal seizures, and Dravet syndrome were 4.7%, 19.9%, 41.9%, and 47.4% respectively. Studies with populations under 18 years showed a 13.2 times greater risk of ASD than study populations over 18 years, and samples with most (>50%) individuals with intellectual disability showed a greater risk 4.9 times higher than study populations with a minority of individuals with intellectual disability. The main risk factors for ASD reported in the 19 studies included presence of intellectual disability, sex, age, and symptomatic aetiology of epilepsy. Interpretation: Current research supports a high prevalence of ASD in epilepsy. This study helps to define the clinical profile of patients with epilepsy who are at risk for ASD, which may help clinicians in early screening and diagnosis of ASD in this population. What this paper adds: • Critical evaluation of previous studies examining the prevalence of autism spectrum disorder (ASD) in individuals with epilepsy. • A meta‐analysis of 19 studies showed a pooled ASD prevalence of 6.3% in individuals with epilepsy. • Studies that included a majority of individuals with intellectual disability or younger population age had a higher prevalence of autism. • Risk factors reported in studies included presence of intellectual disability, sex, age, and symptomatic epilepsy origin.
Type of material: Journal Article
Publisher: Wiley
Journal: Developmental Medicine and Child Neurology
Volume: 60
Issue: 1
Start page: 19
End page: 29
Copyright (published version): 2017 Mac Keith Press
Keywords: Autism spectrum disorder (ASD)EpilepsyPrevalenceRisk FactorsComorbidity
DOI: 10.1111/dmcn.13598
Language: en
Status of Item: Peer reviewed
Appears in Collections:Psychology Research Collection

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