ASD Symptoms in Toddlers and Preschoolers: An Examination of Sex Differences. Ros-Demarize, R., Bradley, C., Kanne, S. M., Warren, Z., Boan, A., Lajonchere, C., Park, J., & Carpenter, L. A. Autism Research: Official Journal of the International Society for Autism Research, November, 2019. doi abstract bibtex Although considerable work has documented higher prevalence rates of autism spectrum disorder (ASD) in boys, fewer studies have focused on sex differences within samples of young children at-risk for ASD. This study examined sex differences in ASD symptom domains and ASD screening outcomes among toddlers (18-35 months) and preschoolers (36-72 months) with ASD-related concerns. Participants included 480 children between 18 and 72 months evaluated by university-based ASD specialty clinics. Results revealed significant sex differences in severity of social communication (SC) deficits across age groups. Within the toddler group, girls diagnosed with ASD displayed greater SC deficits according to standardized observation and clinician severity ratings. Within the preschool group, girls diagnosed with ASD were rated by parents as having more severe SC deficits, but these differences were not corroborated by standardized observations or clinician ratings. No sex differences emerged for severity of restricted repetitive behaviors (RRBs) for either age group. Across the entire referred sample, boys and girls did not differ in terms of scores on commonly used screening instruments. Importantly, results suggest that two of the most commonly used ASD screeners (i.e., Modified-Checklist for Autism in Toddlers-Revised with Follow-up and Social Communication Questionnaire ) may underidentify RRBs in toddler and preschool-aged girls as screening scores were only influenced by severity of SC deficits. Greater SC deficits in young girls with ASD along with its impact on screening status suggests greater attention be placed on the under-identification of ASD in girls as well as current screening measures' ability to tap into the topography of ASD symptoms across genders. Autism Res 2019. © 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: In this study, we found that young girls diagnosed with autism spectrum disorder tend to have greater social communication deficits than young boys and that these differences vary by age. Specifically, toddler-aged girls receive higher clinician ratings of social communication deficits when compared to boys, while preschool-aged girls receive higher parent ratings of social communication deficits. For girls, current screening tools seem to be more highly influenced by severity of social communication deficits than by restricted repetitive behaviors.
@article{ros-demarize_asd_2019,
title = {{ASD} {Symptoms} in {Toddlers} and {Preschoolers}: {An} {Examination} of {Sex} {Differences}},
issn = {1939-3806},
shorttitle = {{ASD} {Symptoms} in {Toddlers} and {Preschoolers}},
doi = {10.1002/aur.2241},
abstract = {Although considerable work has documented higher prevalence rates of autism spectrum disorder (ASD) in boys, fewer studies have focused on sex differences within samples of young children at-risk for ASD. This study examined sex differences in ASD symptom domains and ASD screening outcomes among toddlers (18-35 months) and preschoolers (36-72 months) with ASD-related concerns. Participants included 480 children between 18 and 72 months evaluated by university-based ASD specialty clinics. Results revealed significant sex differences in severity of social communication (SC) deficits across age groups. Within the toddler group, girls diagnosed with ASD displayed greater SC deficits according to standardized observation and clinician severity ratings. Within the preschool group, girls diagnosed with ASD were rated by parents as having more severe SC deficits, but these differences were not corroborated by standardized observations or clinician ratings. No sex differences emerged for severity of restricted repetitive behaviors (RRBs) for either age group. Across the entire referred sample, boys and girls did not differ in terms of scores on commonly used screening instruments. Importantly, results suggest that two of the most commonly used ASD screeners (i.e., Modified-Checklist for Autism in Toddlers-Revised with Follow-up and Social Communication Questionnaire ) may underidentify RRBs in toddler and preschool-aged girls as screening scores were only influenced by severity of SC deficits. Greater SC deficits in young girls with ASD along with its impact on screening status suggests greater attention be placed on the under-identification of ASD in girls as well as current screening measures' ability to tap into the topography of ASD symptoms across genders. Autism Res 2019. © 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: In this study, we found that young girls diagnosed with autism spectrum disorder tend to have greater social communication deficits than young boys and that these differences vary by age. Specifically, toddler-aged girls receive higher clinician ratings of social communication deficits when compared to boys, while preschool-aged girls receive higher parent ratings of social communication deficits. For girls, current screening tools seem to be more highly influenced by severity of social communication deficits than by restricted repetitive behaviors.},
language = {eng},
journal = {Autism Research: Official Journal of the International Society for Autism Research},
author = {Ros-Demarize, Rosmary and Bradley, Catherine and Kanne, Stephen M. and Warren, Zachary and Boan, Andrea and Lajonchere, Clara and Park, Justine and Carpenter, Laura Arnstein},
month = nov,
year = {2019},
pmid = {31747131},
keywords = {autism spectrum disorder, restricted repetitive behaviors, screening measures, sex differences, social communication deficits},
}
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Participants included 480 children between 18 and 72 months evaluated by university-based ASD specialty clinics. Results revealed significant sex differences in severity of social communication (SC) deficits across age groups. Within the toddler group, girls diagnosed with ASD displayed greater SC deficits according to standardized observation and clinician severity ratings. Within the preschool group, girls diagnosed with ASD were rated by parents as having more severe SC deficits, but these differences were not corroborated by standardized observations or clinician ratings. No sex differences emerged for severity of restricted repetitive behaviors (RRBs) for either age group. Across the entire referred sample, boys and girls did not differ in terms of scores on commonly used screening instruments. Importantly, results suggest that two of the most commonly used ASD screeners (i.e., Modified-Checklist for Autism in Toddlers-Revised with Follow-up and Social Communication Questionnaire ) may underidentify RRBs in toddler and preschool-aged girls as screening scores were only influenced by severity of SC deficits. Greater SC deficits in young girls with ASD along with its impact on screening status suggests greater attention be placed on the under-identification of ASD in girls as well as current screening measures' ability to tap into the topography of ASD symptoms across genders. Autism Res 2019. © 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: In this study, we found that young girls diagnosed with autism spectrum disorder tend to have greater social communication deficits than young boys and that these differences vary by age. Specifically, toddler-aged girls receive higher clinician ratings of social communication deficits when compared to boys, while preschool-aged girls receive higher parent ratings of social communication deficits. For girls, current screening tools seem to be more highly influenced by severity of social communication deficits than by restricted repetitive behaviors.","language":"eng","journal":"Autism Research: Official Journal of the International Society for Autism Research","author":[{"propositions":[],"lastnames":["Ros-Demarize"],"firstnames":["Rosmary"],"suffixes":[]},{"propositions":[],"lastnames":["Bradley"],"firstnames":["Catherine"],"suffixes":[]},{"propositions":[],"lastnames":["Kanne"],"firstnames":["Stephen","M."],"suffixes":[]},{"propositions":[],"lastnames":["Warren"],"firstnames":["Zachary"],"suffixes":[]},{"propositions":[],"lastnames":["Boan"],"firstnames":["Andrea"],"suffixes":[]},{"propositions":[],"lastnames":["Lajonchere"],"firstnames":["Clara"],"suffixes":[]},{"propositions":[],"lastnames":["Park"],"firstnames":["Justine"],"suffixes":[]},{"propositions":[],"lastnames":["Carpenter"],"firstnames":["Laura","Arnstein"],"suffixes":[]}],"month":"November","year":"2019","pmid":"31747131","keywords":"autism spectrum disorder, restricted repetitive behaviors, screening measures, sex differences, social communication deficits","bibtex":"@article{ros-demarize_asd_2019,\n\ttitle = {{ASD} {Symptoms} in {Toddlers} and {Preschoolers}: {An} {Examination} of {Sex} {Differences}},\n\tissn = {1939-3806},\n\tshorttitle = {{ASD} {Symptoms} in {Toddlers} and {Preschoolers}},\n\tdoi = {10.1002/aur.2241},\n\tabstract = {Although considerable work has documented higher prevalence rates of autism spectrum disorder (ASD) in boys, fewer studies have focused on sex differences within samples of young children at-risk for ASD. This study examined sex differences in ASD symptom domains and ASD screening outcomes among toddlers (18-35 months) and preschoolers (36-72 months) with ASD-related concerns. Participants included 480 children between 18 and 72 months evaluated by university-based ASD specialty clinics. Results revealed significant sex differences in severity of social communication (SC) deficits across age groups. Within the toddler group, girls diagnosed with ASD displayed greater SC deficits according to standardized observation and clinician severity ratings. Within the preschool group, girls diagnosed with ASD were rated by parents as having more severe SC deficits, but these differences were not corroborated by standardized observations or clinician ratings. No sex differences emerged for severity of restricted repetitive behaviors (RRBs) for either age group. Across the entire referred sample, boys and girls did not differ in terms of scores on commonly used screening instruments. Importantly, results suggest that two of the most commonly used ASD screeners (i.e., Modified-Checklist for Autism in Toddlers-Revised with Follow-up and Social Communication Questionnaire ) may underidentify RRBs in toddler and preschool-aged girls as screening scores were only influenced by severity of SC deficits. Greater SC deficits in young girls with ASD along with its impact on screening status suggests greater attention be placed on the under-identification of ASD in girls as well as current screening measures' ability to tap into the topography of ASD symptoms across genders. Autism Res 2019. © 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: In this study, we found that young girls diagnosed with autism spectrum disorder tend to have greater social communication deficits than young boys and that these differences vary by age. 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