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03-01-2019 | Original Article | Uitgave 5/2019

Journal of Autism and Developmental Disorders 5/2019

Temperament as an Early Risk Marker for Autism Spectrum Disorders? A Longitudinal Study of High-Risk and Low-Risk Infants

Tijdschrift:
Journal of Autism and Developmental Disorders > Uitgave 5/2019
Auteurs:
M. K. J. Pijl, G. Bussu, T. Charman, M. H. Johnson, E. J. H. Jones, G. Pasco, I. J. Oosterling, N. N. J. Rommelse, J. K. Buitelaar, The BASIS Team
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Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s10803-018-3855-8) contains supplementary material, which is available to authorized users.
The members of The BASIS Team are listed in Acknowledgments.

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Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Abstract

To investigate temperament as an early risk marker for autism spectrum disorder (ASD), we examined parent-reported temperament for high-risk (HR, n = 170) and low-risk (LR, n = 77) siblings at 8, 14, and 24 months. Diagnostic assessment was performed at 36 months. Group-based analyses showed linear risk gradients, with more atypical temperament for HR-ASD, followed by HR-Atypical, HR-Typical, and LR siblings. Temperament differed significantly between outcome groups (0.03 ≤ ηp2 ≤ 0.34). Machine learning analyses showed that, at an individual level, HR-ASD siblings could not be identified accurately, whereas HR infants without ASD could. Our results emphasize the discrepancy between group-based and individual-based predictions and suggest that while temperament does not facilitate early identification of ASD individually, it may help identify HR infants who do not develop ASD.

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Supplementary material 1 (DOCX 222 KB)
10803_2018_3855_MOESM1_ESM.docx
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