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Preschoolers with Autism Spectrum Disorder Followed for 2 Years: Those Who Gained and Those Who Lost the Most in Terms of Adaptive Functioning Outcome

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Abstract

Clinical predictors of 2-year outcome in preschoolers with ASD were studied in a population-based group of very young children with ASD (n = 208). Children who gained the most (n = 30) and lost the most (n = 23), i.e., increased or decreased their adaptive functioning outcome according to the Vineland Composite Score between study entry (T1) and follow-up (T2), 2 years later were compared. Individual factors that differed significantly between the two outcome groups were cognitive level, age at referral, not passing expected milestones at 18 months, autistic type behavior problems and regression. However, logistic regression analysis showed that only cognitive level at T1 (dichotomized into IQ < 70 and IQ ≥ 70) made a unique statistically significant contribution to outcome prediction (p = <.001) with an odds ratio of 18.01. The findings have significant clinical implications in terms of information at diagnosis regarding clinical prognosis in ASD.

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Acknowledgments

Financial support was given from Wilhelm and Martina Lundgren Foundation, Sven Jerring Foundation and the Gillberg Neuropsychiatry Centre (ÅH), from LifeWatch, Niclas Öberg Foundation (EF), the Per and Ann-Mari Ahlqvist Foundation, and from Alexandra and Ragnar Söderberg (CG).

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The authors declare that they have no conflict of interest.

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Correspondence to Eva Billstedt.

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Hedvall, Å., Westerlund, J., Fernell, E. et al. Preschoolers with Autism Spectrum Disorder Followed for 2 Years: Those Who Gained and Those Who Lost the Most in Terms of Adaptive Functioning Outcome. J Autism Dev Disord 45, 3624–3633 (2015). https://doi.org/10.1007/s10803-015-2509-3

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