Cognitive behavioural therapy for anxiety in children and young people on the autism spectrum: a systematic review and meta-analysis

Abstract Background Anxiety is common in youth on the autism spectrum and cognitive behavioural therapy (CBT) has been adapted to address associated symptoms. The aim of the current systematic review and meta-analysis was to examine the efficacy of CBT for reducing anxiety in autistic youth. Method...

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Main Authors: Shivani Sharma, Abigail Hucker, Terry Matthews, Dominique Grohmann, Keith R. Laws
Format: Article
Language:English
Published: BMC 2021-10-01
Series:BMC Psychology
Subjects:
Online Access:https://doi.org/10.1186/s40359-021-00658-8
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author Shivani Sharma
Abigail Hucker
Terry Matthews
Dominique Grohmann
Keith R. Laws
author_facet Shivani Sharma
Abigail Hucker
Terry Matthews
Dominique Grohmann
Keith R. Laws
author_sort Shivani Sharma
collection DOAJ
description Abstract Background Anxiety is common in youth on the autism spectrum and cognitive behavioural therapy (CBT) has been adapted to address associated symptoms. The aim of the current systematic review and meta-analysis was to examine the efficacy of CBT for reducing anxiety in autistic youth. Method Searches of PubMed and Scopus databases were undertaken from January 1990 until December 2020. Studies were included if they consisted of randomised controlled trials (RCTs) using CBT to reduce anxiety in autistic youth. Separate random effects meta-analyses assessed anxiety ratings according to informant (clinician; parent; child), both at end-of-trial and at follow-up. Results A total of 19 RCTs met our inclusion criteria (833 participants: CBT N = 487; controls N = 346). Random effects meta-analyses revealed a large effect size for clinician rated symptoms (g = 0.88, 95% CI 0.55, 1.12, k = 11), while those for both parent (g = 0.40, 95% CI 0.24, 0.56; k = 18) and child-reported anxiety (g = 0.25, 95% CI 0.06, 0.43; k = 13) were smaller, but significant. These benefits were not however maintained at follow-up. Moderator analyses showed that CBT was more efficacious for younger children (for clinician and parent ratings) and when delivered as individual therapy (for clinician ratings). Using the Cochrane Risk of Bias 2 tool, we found concerns about reporting bias across most trials. Conclusions The efficacy of CBT for anxiety in autistic youth was supported in the immediate intervention period. However, substantial inconsistency emerged in the magnitude of benefit depending upon who was rating symptoms (clinician, parent or child). Follow-up analyses failed to reveal sustained benefits, though few studies have included this data. It will be important for future trials to address robustness of treatment gains overtime and to further explore inconsistency in efficacy by informant. We also recommend pre-registration of methods by trialists to address concerns with reporting bias.
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spelling doaj.art-e116b11fc9c742a99ec91376b7eecf412022-12-21T21:27:15ZengBMCBMC Psychology2050-72832021-10-019111610.1186/s40359-021-00658-8Cognitive behavioural therapy for anxiety in children and young people on the autism spectrum: a systematic review and meta-analysisShivani Sharma0Abigail Hucker1Terry Matthews2Dominique Grohmann3Keith R. Laws4School of Life and Medical Sciences, University of HertfordshireSchool of Life and Medical Sciences, University of HertfordshireSchool of Life and Medical Sciences, University of HertfordshireSchool of Life and Medical Sciences, University of HertfordshireSchool of Life and Medical Sciences, University of HertfordshireAbstract Background Anxiety is common in youth on the autism spectrum and cognitive behavioural therapy (CBT) has been adapted to address associated symptoms. The aim of the current systematic review and meta-analysis was to examine the efficacy of CBT for reducing anxiety in autistic youth. Method Searches of PubMed and Scopus databases were undertaken from January 1990 until December 2020. Studies were included if they consisted of randomised controlled trials (RCTs) using CBT to reduce anxiety in autistic youth. Separate random effects meta-analyses assessed anxiety ratings according to informant (clinician; parent; child), both at end-of-trial and at follow-up. Results A total of 19 RCTs met our inclusion criteria (833 participants: CBT N = 487; controls N = 346). Random effects meta-analyses revealed a large effect size for clinician rated symptoms (g = 0.88, 95% CI 0.55, 1.12, k = 11), while those for both parent (g = 0.40, 95% CI 0.24, 0.56; k = 18) and child-reported anxiety (g = 0.25, 95% CI 0.06, 0.43; k = 13) were smaller, but significant. These benefits were not however maintained at follow-up. Moderator analyses showed that CBT was more efficacious for younger children (for clinician and parent ratings) and when delivered as individual therapy (for clinician ratings). Using the Cochrane Risk of Bias 2 tool, we found concerns about reporting bias across most trials. Conclusions The efficacy of CBT for anxiety in autistic youth was supported in the immediate intervention period. However, substantial inconsistency emerged in the magnitude of benefit depending upon who was rating symptoms (clinician, parent or child). Follow-up analyses failed to reveal sustained benefits, though few studies have included this data. It will be important for future trials to address robustness of treatment gains overtime and to further explore inconsistency in efficacy by informant. We also recommend pre-registration of methods by trialists to address concerns with reporting bias.https://doi.org/10.1186/s40359-021-00658-8Autism spectrumCognitive behavioural therapyAnxietyFollow-upSelf ratingsParent ratings
spellingShingle Shivani Sharma
Abigail Hucker
Terry Matthews
Dominique Grohmann
Keith R. Laws
Cognitive behavioural therapy for anxiety in children and young people on the autism spectrum: a systematic review and meta-analysis
BMC Psychology
Autism spectrum
Cognitive behavioural therapy
Anxiety
Follow-up
Self ratings
Parent ratings
title Cognitive behavioural therapy for anxiety in children and young people on the autism spectrum: a systematic review and meta-analysis
title_full Cognitive behavioural therapy for anxiety in children and young people on the autism spectrum: a systematic review and meta-analysis
title_fullStr Cognitive behavioural therapy for anxiety in children and young people on the autism spectrum: a systematic review and meta-analysis
title_full_unstemmed Cognitive behavioural therapy for anxiety in children and young people on the autism spectrum: a systematic review and meta-analysis
title_short Cognitive behavioural therapy for anxiety in children and young people on the autism spectrum: a systematic review and meta-analysis
title_sort cognitive behavioural therapy for anxiety in children and young people on the autism spectrum a systematic review and meta analysis
topic Autism spectrum
Cognitive behavioural therapy
Anxiety
Follow-up
Self ratings
Parent ratings
url https://doi.org/10.1186/s40359-021-00658-8
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