Association between epilepsy and psychiatric disorders in adults with intellectual disabilities: systematic review and meta-analysis

Background Psychiatric disorders, such as depression and anxiety, are commonly associated with epilepsy in the general population, but the relationship between psychiatric disorders and epilepsy among adults with intellectual disabilities is unclear. Aims To conduct a systematic review and meta-ana...

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Main Authors: Basma Akrout Brizard, Bharati Limbu, Carolina Baeza-Velasco, Shoumitro Deb
Format: Article
Language:English
Published: Cambridge University Press 2021-05-01
Series:BJPsych Open
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S2056472421000557/type/journal_article
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author Basma Akrout Brizard
Bharati Limbu
Carolina Baeza-Velasco
Shoumitro Deb
author_facet Basma Akrout Brizard
Bharati Limbu
Carolina Baeza-Velasco
Shoumitro Deb
author_sort Basma Akrout Brizard
collection DOAJ
description Background Psychiatric disorders, such as depression and anxiety, are commonly associated with epilepsy in the general population, but the relationship between psychiatric disorders and epilepsy among adults with intellectual disabilities is unclear. Aims To conduct a systematic review and meta-analysis to assess whether epilepsy is associated with an increased rate of psychiatric disorders in adults with intellectual disabilities. Method We included literature published between 1985 and 2020 from four databases, and hand-searched six relevant journals. We assessed risk of bias by using SIGN 50 and the Cochrane risk of bias tool. Several meta-analyses were carried out. Results We included 29 papers involving data on 9594 adults with intellectual disabilities, 3180 of whom had epilepsy and 6414 did not. Of the 11 controlled studies that compared the overall rate of psychiatric disorders between the epilepsy and non-epilepsy groups, seven did not show any significant inter-group difference. Meta-analysis was possible on pooled data from seven controlled studies, which did not show any significant inter-group difference in the overall rate of psychiatric disorders. The rates of psychotic disorders, depressive disorders and anxiety disorders were significantly higher in the non-epilepsy control groups compared with the epilepsy group, with effect sizes of 0.29, 0.47 and 0.58, respectively. Epilepsy-related factors did not show any definite association with psychiatric disorders. Conclusions It is difficult to pool data from such heterogeneous studies and draw any definitive conclusion because most studies lacked an appropriately matched control group, which will be required for future studies.
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spelling doaj.art-082e49bceaa24cbe9887b53e61344a0e2023-03-09T12:29:06ZengCambridge University PressBJPsych Open2056-47242021-05-01710.1192/bjo.2021.55Association between epilepsy and psychiatric disorders in adults with intellectual disabilities: systematic review and meta-analysisBasma Akrout Brizard0https://orcid.org/0000-0003-4576-4824Bharati Limbu1Carolina Baeza-Velasco2Shoumitro Deb3https://orcid.org/0000-0002-1300-8103Université de Paris, Laboratory of Psychopathology and Health Processes, F-92100 Boulogne Billancourt, FranceDepartment of Brain Sciences, Faculty of Medicine, Imperial College London, UKLaboratory of Psychopathology and Health Processes, Université de Paris, France; and Department of Emergency Psychiatry and Acute Care, CHU Montpellier, FranceDivision of Psychiatry, Department of Brain Sciences, Faculty of Medicine, Imperial College London, UKBackground Psychiatric disorders, such as depression and anxiety, are commonly associated with epilepsy in the general population, but the relationship between psychiatric disorders and epilepsy among adults with intellectual disabilities is unclear. Aims To conduct a systematic review and meta-analysis to assess whether epilepsy is associated with an increased rate of psychiatric disorders in adults with intellectual disabilities. Method We included literature published between 1985 and 2020 from four databases, and hand-searched six relevant journals. We assessed risk of bias by using SIGN 50 and the Cochrane risk of bias tool. Several meta-analyses were carried out. Results We included 29 papers involving data on 9594 adults with intellectual disabilities, 3180 of whom had epilepsy and 6414 did not. Of the 11 controlled studies that compared the overall rate of psychiatric disorders between the epilepsy and non-epilepsy groups, seven did not show any significant inter-group difference. Meta-analysis was possible on pooled data from seven controlled studies, which did not show any significant inter-group difference in the overall rate of psychiatric disorders. The rates of psychotic disorders, depressive disorders and anxiety disorders were significantly higher in the non-epilepsy control groups compared with the epilepsy group, with effect sizes of 0.29, 0.47 and 0.58, respectively. Epilepsy-related factors did not show any definite association with psychiatric disorders. Conclusions It is difficult to pool data from such heterogeneous studies and draw any definitive conclusion because most studies lacked an appropriately matched control group, which will be required for future studies. https://www.cambridge.org/core/product/identifier/S2056472421000557/type/journal_articleIntellectual disabilitiesepilepsypsychiatric disorderssystematic reviewmeta-analysis
spellingShingle Basma Akrout Brizard
Bharati Limbu
Carolina Baeza-Velasco
Shoumitro Deb
Association between epilepsy and psychiatric disorders in adults with intellectual disabilities: systematic review and meta-analysis
BJPsych Open
Intellectual disabilities
epilepsy
psychiatric disorders
systematic review
meta-analysis
title Association between epilepsy and psychiatric disorders in adults with intellectual disabilities: systematic review and meta-analysis
title_full Association between epilepsy and psychiatric disorders in adults with intellectual disabilities: systematic review and meta-analysis
title_fullStr Association between epilepsy and psychiatric disorders in adults with intellectual disabilities: systematic review and meta-analysis
title_full_unstemmed Association between epilepsy and psychiatric disorders in adults with intellectual disabilities: systematic review and meta-analysis
title_short Association between epilepsy and psychiatric disorders in adults with intellectual disabilities: systematic review and meta-analysis
title_sort association between epilepsy and psychiatric disorders in adults with intellectual disabilities systematic review and meta analysis
topic Intellectual disabilities
epilepsy
psychiatric disorders
systematic review
meta-analysis
url https://www.cambridge.org/core/product/identifier/S2056472421000557/type/journal_article
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