J Korean Acad Child Adolesc Psychiatry.
2015 Mar;26(1):22-29. 10.5765/jkacap.2015.26.1.22.
Clinical Characteristics of Children with Autism Spectrum Disorder According to the Presence of Motor Stereotypes
- Affiliations
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- 1Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Korea.
- 2Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea.
- 3Department of Neuropsychiatry, Bongseng Memorial Hospital, Busan, Korea.
- 4In-Hee Cho Neuropsychiatric Clinic, Seongnam, Korea.
- 5Department of Psychiatry, Chonbuk National University Hospital, Jeonju, Korea.
- 6Department of Psychiatry, Chungbuk National University Hospital, Cheongju, Korea.
- 7Department of Psychiatry, Kyungpook National University Hospital, Daegu, Korea.
- 8Department of Neuropsychiatry, Seoul National Hospital, Seoul, Korea.
- 9Department of Psychiatry, Busan Paik Hospital, Busan, Korea.
- 10Department of Psychiatry, Yong-in Mental Hospital, Yongin, Korea.
- 11Department of Psychiatry, The Korea Armed Forces Capital Hospital, Seongnam, Korea. soochurl@snu.ac.kr
- KMID: 2172705
- DOI: http://doi.org/10.5765/jkacap.2015.26.1.22
Abstract
OBJECTIVES
Repetitive and stereotyped behaviors are core symptoms in children with autism spectrum disorders (ASD). The purpose of our study was to investigate the frequency of motor stereotypes in ASD children and their clinical features.
METHODS
Among 171 ASD children (age range, 3-15), the ASD group with motor stereotypes was defined according to two items in the Korean version of Autism Diagnostic Interview-Revised (K-ADI-R). We compared the clinical features, behavior problems and severity of other domains in the K-ADI-R and executive functions between the ASD group with motor stereotypes and the ASD group without motor stereotypes.
RESULTS
Ninety (52.6%) of 171 ASD children had motor stereotypes. The ASD group with motor stereotypes had a lower intelligence quotient score (62.23 vs. 84.94, p<.001) compared to the ASD group without motor stereotypes. The ASD group with motor stereotypes had more impairments in the social interaction domain [adjusted odds ratio (AOR) 1.11, p=.001] and communication domain (AOR 1.15, p=.008). Thought problems and lethargy were more frequent in the ASD group with motor stereotypes than the ASD group without motor stereotypes (AOR 2.059, p=.034 ; adjusted OR 1.045, p=.046). However, no significant differences in executive function were observed between the ASD group with motor stereotypes and the ASD group without motor stereotypes.
CONCLUSION
The ASD group with motor stereotypes showed more impairment in social interaction and communication domains, which are core symptoms of autism. Motor stereotypes may indicate greater severity of ASD.
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