1. Parental reports on early language and motor milestones in fragile X syndrome with and without autism spectrum disorders.
- Author
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Hinton R, Budimirovic DB, Marschik PB, Talisa VB, Einspieler C, Gipson T, and Johnston MV
- Subjects
- Child, Child Development Disorders, Pervasive physiopathology, Female, Fragile X Syndrome physiopathology, Humans, Male, Phenotype, Retrospective Studies, Surveys and Questionnaires, Child Development Disorders, Pervasive epidemiology, Child Development Disorders, Pervasive rehabilitation, Fragile X Syndrome epidemiology, Fragile X Syndrome rehabilitation, Language Development, Parents, Walking
- Abstract
Objective: This study examined features of early language and motor milestones in children with fragile X syndrome (FXS) and contrasted these features with a diagnosis of Autism Spectrum Disorder (ASD) later in life in these children., Methods: We retrospectively examined parental report of age of onset for walking and first words for primarily boys with FXS, both with ASD (FXS + ASD) and FXS-only. The diagnosis of ASD was established by DSM-IV criteria, which were complemented by the ADOS. The age of onset was analyzed as a continuous and categorical variable, which were compared to the upper limit of typically developing children., Results: Individuals with FXS-only are more delayed in the onset of first words than first walks. The finding represents a pattern suggesting a continuum as robustly demonstrated in individuals with FXS + ASD vs. FXS-only., Conclusion: Our results support validity of FXS + ASD co-morbidity as a distinct phenotype in individuals with FXS.
- Published
- 2013
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