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Differences in Body Mass Index (BMI) in Early Adolescents with Autism Spectrum Disorder Compared to Youth with Typical Development

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Abstract

Adolescence is a time of exceptional physical health juxtaposed against significant psychosocial and weight-related problems. The study included 241, 10-to-13-year-old youth with autism spectrum disorder (ASD, N = 138) or typical development (TD, N = 103). Standardized exams measured pubertal development, height (HT), weight (WT), heart rate (HR), blood pressure (BP) and Body Mass Index (BMI). Analysis of Variance showed no significant between-group differences for HT, WT, HR, or BP (all p > 0.05). There was a significant difference in BMI-percentile between the groups (F(1,234) = 6.05, p = 0.01). Using hierarchical linear regression, significant predictors of BMI-percentile included diagnosis, pubertal stage and socioeconomic status. Pre-to-early pubescent children with ASD evidence higher BMI percentiles compared to youth with TD suggesting they may be at heightened risk for weight-related health concerns.

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Acknowledgments

This study was funded by the National Institute of Mental Health (MH111599 PI: Corbett) with core support from the National Center for Advancing Translational Sciences (CTSA UL1 TR000445). None of the funding sources were involved in the study design, collection, analysis and interpretation of the data, writing of the report, or the decision to submit the article for publication.

Funding

This study was funded by the National Institute of Mental Health (MH111599 PI: Corbett) with core support from the National Center for Advancing Translational Sciences (CTSA UL1 TR000445).

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Authors and Affiliations

Authors

Contributions

BAC conceived of the study, supervised the implementation of study protocols and data collection, contributed to diagnostic assessments, analyzed and interpreted statistical analyses, and drafted and finalized the manuscript. RAM contributed to neuropsychological assessments and data collection, contributed to statistical analysis and interpretation of findings, and assisted with preparation of the drafted and finalized manuscript. BKH contributed to interpretation of the findings, drafting of the original manuscript, and review and editing of the final manuscript. MEK assisted with data collection and data management and contributed to reviewing and editing of drafts and the final manuscript. YT performed the majority of the physical examinations for the study and contributed to the final manuscript.

Corresponding author

Correspondence to Blythe A. Corbett.

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The authors declare that they have no conflict of interest.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Informed written consent and assent was obtained from all parents and study participants, respectively, prior to inclusion in the study.

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Corbett, B.A., Muscatello, R.A., Horrocks, B.K. et al. Differences in Body Mass Index (BMI) in Early Adolescents with Autism Spectrum Disorder Compared to Youth with Typical Development. J Autism Dev Disord 51, 2790–2799 (2021). https://doi.org/10.1007/s10803-020-04749-0

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  • DOI: https://doi.org/10.1007/s10803-020-04749-0

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