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01-10-2011 | Orginal Paper | Uitgave 10/2011

Journal of Autism and Developmental Disorders 10/2011

Phenotypic Overlap Between Core Diagnostic Features and Emotional/Behavioral Problems in Preschool Children with Autism Spectrum Disorder

Tijdschrift:
Journal of Autism and Developmental Disorders > Uitgave 10/2011
Auteurs:
Stelios Georgiades, Peter Szatmari, Eric Duku, Lonnie Zwaigenbaum, Susan Bryson, Wendy Roberts, Eric Fombonne, Pat Mirenda, Isabel Smith, Tracy Vaillancourt, Joanne Volden, Charlotte Waddell, Ann Thompson, Pathways in ASD Study Team

Abstract

This study examined the phenotypic overlap between core diagnostic features and emotional/behavioral problems in a sample of 335 preschool children with autism spectrum disorder (ASD). Results from principal component analysis (2 components; 49.70% variance explained) suggested substantial phenotypic overlap between core diagnostic features and emotional/behavioral problems. Component I, Emotional Behavioral Repetitive Problems, was independent of the children’s intellectual, adaptive functioning, and structural language abilities. Component II, Social Communication Deficits, was negatively related to the children’s intellectual, adaptive functioning, and structural language abilities. Both components were positively related to parental stress. This exploratory study contributes to our understanding of the ASD phenotype and provides further support for including emotional/behavioral problems as part of the clinical characterization of children with ASD.

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