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Published on: March 14, 2018
Language Development in Sex Chromosome Trisomies: Developmental Profiles at 2 and 4 Years of Age, and Predictive
Elena Capelli1, Gaia Silibello2, Paola Francesca Ajmone2
1University of Milano-Bicocca, Milan Italy.
Purpose:
Describing language development in children with sex chromosome trisomies (SCT) and testing the predictive value of early language measures on later outcomes.
Method:
Thirteen children with SCT were followed longitudinally. Their developmental profile was assessed, with particular attention to language, at 2 and 4 years. The predictive value of direct (spontaneous speech analysis) and indirect (communicative development inventory) language measures at 2 on performances at 4 was tested.
Results:
Language performances at both ages were lower than non-verbal development. At 2, more than 50% of the group produced less than 50 words. At 4, impaired performances were observed in speech sound development and expressive morpho-syntax. Direct measures of Pre-syntactic development predicted later global language outcomes and Sentence Repetition. The number of consonants used at 2 was significantly related to Nonword Repetition at 4.
Conclusions:
The study highlights the importance of early detection and careful follow-up for children with SCT.
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