Prevalence of autism in an urban population of adults with severe intellectual disabilities--a preliminary study
To access publisher full text version of this article. Please click on the hyperlink in Additional Links field BACKGROUND: Research on the prevalence of autism in Iceland has indicated that one possible explanation of fewer autism cases in older age groups was due to an underestimation of autism in...
Published in: | Journal of Intellectual Disability Research |
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Online Access: | http://hdl.handle.net/2336/118251 https://doi.org/10.1111/j.1365-2788.2010.01300.x |
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ftlandspitaliuni:oai:www.hirsla.lsh.is:2336/118251 2023-05-15T16:47:30+02:00 Prevalence of autism in an urban population of adults with severe intellectual disabilities--a preliminary study Saemundsen, E Juliusson, H Hjaltested, S Gunnarsdottir, T Halldorsdottir, T Hreidarsson, S Magnusson, P State Diagnostic and Counselling Centre, Division of Autism, Kopavogur, Iceland. evald@greining.is 2010-12-22 http://hdl.handle.net/2336/118251 https://doi.org/10.1111/j.1365-2788.2010.01300.x en eng Blackwell Scientific Publications http://dx.doi.org/10.1111/j.1365-2788.2010.01300.x J Intellect Disabil Res. 2010, 54(8):727-35 1365-2788 20633201 doi:10.1111/j.1365-2788.2010.01300.x http://hdl.handle.net/2336/118251 Journal of intellectual disability research : JIDR Adult Autistic Disorder Epilepsy Female Humans Iceland Male Mental Retardation Middle Aged Nervous System Diseases Prevalence Psychological Tests Severity of Illness Index Sex Distribution Urban Population Young Adult Article 2010 ftlandspitaliuni https://doi.org/10.1111/j.1365-2788.2010.01300.x 2022-05-29T08:21:41Z To access publisher full text version of this article. Please click on the hyperlink in Additional Links field BACKGROUND: Research on the prevalence of autism in Iceland has indicated that one possible explanation of fewer autism cases in older age groups was due to an underestimation of autism in individuals with intellectual disabilities (IDs). The present study systematically searched for autism cases in the adult population of individuals with severe ID living in the city of Reykjavik, Iceland. METHODS: Potential participants (n = 256) were recruited through the Regional Office for the Affairs of the Handicapped in Reykjavik. First, a screening tool for autism was applied, followed by the Childhood Autism Rating Scale and finally the Autism Diagnostic Interview-Revised (ADI-R). RESULTS: The point prevalence of severe ID was 3.7/1000 (95% CI 3.2-4.1) with a male-female ratio of 1.2:1. Participation rate in the study was 46.5%. Participants were younger than non-participants and more often residents of group homes. The prevalence of autism was 21% (25/119) (95% CI 14.7-29.2) with a male-female ratio of 1.8:1. Of the individuals with autism, 10/25 (40%) were verbal according to the ADI-R definition, and 18/25 (72%) had active epilepsy and/or other neurological conditions and handicaps. CONCLUSION: The study identified twice the number of autism cases than those previously recognised within the service system. Autism is a prevalent additional handicap in individuals with severe ID, which should always be considered in this population. There are indications that the estimated prevalence of autism found should be considered minimal. Article in Journal/Newspaper Iceland Hirsla - Landspítali University Hospital research archive Journal of Intellectual Disability Research 54 8 727 735 |
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Open Polar |
collection |
Hirsla - Landspítali University Hospital research archive |
op_collection_id |
ftlandspitaliuni |
language |
English |
topic |
Adult Autistic Disorder Epilepsy Female Humans Iceland Male Mental Retardation Middle Aged Nervous System Diseases Prevalence Psychological Tests Severity of Illness Index Sex Distribution Urban Population Young Adult |
spellingShingle |
Adult Autistic Disorder Epilepsy Female Humans Iceland Male Mental Retardation Middle Aged Nervous System Diseases Prevalence Psychological Tests Severity of Illness Index Sex Distribution Urban Population Young Adult Saemundsen, E Juliusson, H Hjaltested, S Gunnarsdottir, T Halldorsdottir, T Hreidarsson, S Magnusson, P Prevalence of autism in an urban population of adults with severe intellectual disabilities--a preliminary study |
topic_facet |
Adult Autistic Disorder Epilepsy Female Humans Iceland Male Mental Retardation Middle Aged Nervous System Diseases Prevalence Psychological Tests Severity of Illness Index Sex Distribution Urban Population Young Adult |
description |
To access publisher full text version of this article. Please click on the hyperlink in Additional Links field BACKGROUND: Research on the prevalence of autism in Iceland has indicated that one possible explanation of fewer autism cases in older age groups was due to an underestimation of autism in individuals with intellectual disabilities (IDs). The present study systematically searched for autism cases in the adult population of individuals with severe ID living in the city of Reykjavik, Iceland. METHODS: Potential participants (n = 256) were recruited through the Regional Office for the Affairs of the Handicapped in Reykjavik. First, a screening tool for autism was applied, followed by the Childhood Autism Rating Scale and finally the Autism Diagnostic Interview-Revised (ADI-R). RESULTS: The point prevalence of severe ID was 3.7/1000 (95% CI 3.2-4.1) with a male-female ratio of 1.2:1. Participation rate in the study was 46.5%. Participants were younger than non-participants and more often residents of group homes. The prevalence of autism was 21% (25/119) (95% CI 14.7-29.2) with a male-female ratio of 1.8:1. Of the individuals with autism, 10/25 (40%) were verbal according to the ADI-R definition, and 18/25 (72%) had active epilepsy and/or other neurological conditions and handicaps. CONCLUSION: The study identified twice the number of autism cases than those previously recognised within the service system. Autism is a prevalent additional handicap in individuals with severe ID, which should always be considered in this population. There are indications that the estimated prevalence of autism found should be considered minimal. |
author2 |
State Diagnostic and Counselling Centre, Division of Autism, Kopavogur, Iceland. evald@greining.is |
format |
Article in Journal/Newspaper |
author |
Saemundsen, E Juliusson, H Hjaltested, S Gunnarsdottir, T Halldorsdottir, T Hreidarsson, S Magnusson, P |
author_facet |
Saemundsen, E Juliusson, H Hjaltested, S Gunnarsdottir, T Halldorsdottir, T Hreidarsson, S Magnusson, P |
author_sort |
Saemundsen, E |
title |
Prevalence of autism in an urban population of adults with severe intellectual disabilities--a preliminary study |
title_short |
Prevalence of autism in an urban population of adults with severe intellectual disabilities--a preliminary study |
title_full |
Prevalence of autism in an urban population of adults with severe intellectual disabilities--a preliminary study |
title_fullStr |
Prevalence of autism in an urban population of adults with severe intellectual disabilities--a preliminary study |
title_full_unstemmed |
Prevalence of autism in an urban population of adults with severe intellectual disabilities--a preliminary study |
title_sort |
prevalence of autism in an urban population of adults with severe intellectual disabilities--a preliminary study |
publisher |
Blackwell Scientific Publications |
publishDate |
2010 |
url |
http://hdl.handle.net/2336/118251 https://doi.org/10.1111/j.1365-2788.2010.01300.x |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
http://dx.doi.org/10.1111/j.1365-2788.2010.01300.x J Intellect Disabil Res. 2010, 54(8):727-35 1365-2788 20633201 doi:10.1111/j.1365-2788.2010.01300.x http://hdl.handle.net/2336/118251 Journal of intellectual disability research : JIDR |
op_doi |
https://doi.org/10.1111/j.1365-2788.2010.01300.x |
container_title |
Journal of Intellectual Disability Research |
container_volume |
54 |
container_issue |
8 |
container_start_page |
727 |
op_container_end_page |
735 |
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1766037597117743104 |