The Social Behavioral Phenotype in Boys and Girls with an Extra X Chromosome (Klinefelter Syndrome and Trisomy X): A Comparison with Autism Spectrum Disorder

S van Rijn, L Stockmann, M Borghgraef, H Bruining, C van Ravenswaaij-Arts, K Hansson, H Swaab, LCP Govaerts

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60 Citations (Scopus)

Abstract

The present study aimed to gain more insight in the social behavioral phenotype, and related autistic symptomatology, of children with an extra X chromosome in comparison to children with ASD. Participants included 60 children with an extra X chromosome (34 boys with Klinefelter syndrome and 26 girls with Trisomy X), 58 children with ASD and 106 controls, aged 9 to 18 years. We used the Autism Diagnostic Interview, Social Responsiveness Scale, Social Anxiety Scale and Social Skills Rating System. In the extra X group, levels of social dysfunction and autism symptoms were increased, being in between controls and ASD. In contrast to the ASD group, the extra X group showed increased social anxiety. The effects were similar for boys and girls with an extra X chromosome.
Original languageUndefined/Unknown
Pages (from-to)310-320
Number of pages11
JournalJournal of Autism and Developmental Disorders
Volume44
Issue number2
DOIs
Publication statusPublished - 2014

Research programs

  • EMC MGC-02-96-01

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