Abstract
The estimated prevalence of autism spectrum disorder (ASD) is consistently higher in males than females. Gender differences in ASD have long been debated and are influenced by the historical period and source of the sample. The current study reports gender differences in core symptoms, associated features, and treatment response in 682 youth (585 males, 97 females) with ASD. The sample included participants (mean = 7.4 years; range 3–17 years) from six federally-funded, multisite, randomized clinical trials. These trials collected the same measures of social disability, repetitive behavior, adaptive skills, disruptive behavior, and anxiety pretreatment and used the Improvement scale of the Clinical Global Impression at study endpoint. Exploratory analyses yielded no differences between males and females across numerous pre-treatment measures. The rate of positive response was 49.7% for males and 53.6% for females (Chi square = 0.50; p = 0.48). In this sample of convenience, youth with ASD clinical characteristics and response to treatment showed no significant gender differences.
Highlights
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This study is the first analysis of gender differences in a large sample of treatment-seeking youth with ASD.
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Participants included 682 youth with ASD enrolled in six multisite clinical trials.
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No differences were found between males and females with ASD across pre-treatment characterizing measures.
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L.Scahill has served as a consultant to Neuren, Roche, Supernus, Shire, Bracket, and CB Partners. He receives book royalties from Oxford and Guilford. B.V. has served as a consultant to the law firm Gowling, Ottawa, Canada. M.G.A. has received research contracts, consulted with, served on advisory boards, or done investigator training for Aevi Genomic Medicine; AMO Pharma; Bracket Global; CogState, Inc.; CogState Clinical Trials, Ltd.; Confluence Pharmaceutica; Coronado Biosciences; Hoffman-La Roche; Johnson and Johnson; Lumos Pharma; MedAvante, Inc.; Ovid Therapeutics; ProPhase LLC; and Supernus Pharmaceuticals. E.H. has received research grants from Roche, Curemark and Enzymatica. J.T.M. has served as a consultant to Roche, Alcobra Pharmaceuticals, and Think Now, Inc. He has served as an expert witness for Kremers Urban Pharmaceuticals. He has received research support from Roche and Psyadon Pharmaceuticals. B.H.K. has served as a consultant to the Simons Foundation, Care Management Technology, and Neurotrope. He has also received research funding from Janssen and Roche. C.J.M., T.C., A.S., V.P., J.B., L.L., N.B.S., T.S., C.J., E.T., and C.E.M. declare that they have no conflict of interest. All authors have no financial relationships relevant to this article to disclose.
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Cariveau, T., McCracken, C.E., Bradshaw, J. et al. Gender Differences in Treatment-Seeking Youth with Autism Spectrum Disorder. J Child Fam Stud 30, 784–792 (2021). https://doi.org/10.1007/s10826-021-01905-7
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DOI: https://doi.org/10.1007/s10826-021-01905-7