A Distinct Three-Factor Structure of Restricted and Repetitive Behaviors in an Epidemiologically Sound Sample of Preschool-Age Children with Autism Spectrum Disorder

Details

• Alternative Title:
  J Autism Dev Disord
• Personal Author:
  Hiruma, Laura ; Pretzel, Rebecca Edmondson ; Tapia, Amanda L. ; Bodfish, James W. ; Bradley, Chyrise ; Wiggins, Lisa ; Hsu, Melanie ; Lee, Li-Ching ; Levy, Susan E. ; Daniels, Julie
• Description:
  Prior studies investigating restricted and repetitive behavior (RRB) subtypes within autism spectrum disorder (ASD) have found varied factor structures for symptom groupings, in part, due to variation in symptom measurement and broad sample age ranges. This study examined RRBs among 827 preschool-age children, ages 35 to 71 months, through an exploratory factor analysis of RRB items from the Autism Diagnostic Interview-Revised (ADI-R) collected through the Study to Explore Early Development. The factor structures of RRBs among children with confirmed ASD versus those with non-autism developmental concerns were qualitatively compared. Correlations between RRB factors and participant characteristics were examined in the ASD group. Three conceptually well-defined factors characterized as repetitive sensorimotor behaviors (RSMB), insistence on sameness (IS), and a novel stereotyped speech (SPEECH) factor emerged for the ASD group only. Distinct factors were supported by different clinical correlates. Findings have implications for improving differential diagnosis and understanding of ASD symptomatology in this age range.
• Subjects:
  Article Autism Spectrum Disorder Autism Spectrum Disorder (ASD) Autistic Disorder Child Child, Preschool Cognition Exploratory Factor Analysis Factor Analysis, Statistical Humans Preschool Children Restricted And Repetitive Behaviors (RRB) Stereotyped Behavior

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• Source:
  J Autism Dev Disord. 51(10):3456-3468
• Pubmed ID:
  33387232
• Pubmed Central ID:
  PMC8249473
• Document Type:
  Journal Article
• Funding:
  U10 DD000180/DD/NCBDD CDC HHSUnited States/ ; U10 DD000181/DD/NCBDD CDC HHSUnited States/ ; U10 DD000184/DD/NCBDD CDC HHSUnited States/ ; U01 DD000498/DD/NCBDD CDC HHSUnited States/ ; CC999999/ImCDC/Intramural CDC HHSUnited States/ ; U10 DD000182/DD/NCBDD CDC HHSUnited States/ ; U10 DD000183/DD/NCBDD CDC HHSUnited States/
• Volume:
  51
• Issue:
  10
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:c3004ae9f8f5c8329f67195e3a721ceab7d2c81f662946355ec9193614b770be
• Download URL:
  https://stacks.cdc.gov/view/cdc/107984/cdc_107984_DS1.pdf
• File Type:
  [PDF - 535.71 KB ]