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Auteur Anjana BHAT |
Documents disponibles écrits par cet auteur (5)



Cross-replicating findings on unique motor impairments of children with ASD using confirmatory factor analysis and a novel SPARK study sample / Anjana BHAT in Autism Research, 16-5 (May 2023)
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[article]
Titre : Cross-replicating findings on unique motor impairments of children with ASD using confirmatory factor analysis and a novel SPARK study sample Type de document : Texte imprimé et/ou numérique Auteurs : Anjana BHAT, Auteur ; David S. TULSKY, Auteur ; Aaron J. BOULTON, Auteur Article en page(s) : p.967-980 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Abstract A series of recent reports have shed light on the pervasive nature of motor impairments in children with ASD (Bhat, 2020, 2021, Bhat et al., 2022), underscoring the importance of providing ASD clinicians efficient and accurate tools for motor screening. The Developmental Coordination Disorder-Questionnaire (DCD-Q) is a widely used motor screening tool, yet scant evidence exists regarding its psychometric properties in children with ASD. In a recent Exploratory Factor Analysis (EFA) of the 15-item DCD-Q in a large sample of children with ASD (SPARK study), we found a 5-factor latent structure that identified unique motor impairments in a large sample of children with ASD (Bhat et al., 2022). In the current study, we extend this work by cross-replicating the EFA findings of unique ASD-related motor issues using Confirmatory Factor Analysis (CFA) in a new, more recent wave of children with ASD from the SPARK study (N = 9721). The fits and interpretability of 11 hypothesis-driven CFA models, including 8 correlated-factors, 1 second-order, and 2 bifactor models were compared. Our findings supported the previous 5-factor model with 2 gross motor subdomains, 1 fine motor domain (similar to the original DCD-Q) and 2 general coordination subdomains. This model demonstrated acceptable fit in the new sample as well as superior fit compared to several other parsimonious correlated-factors models. However, the second-order and bifactor models fit slightly better and supported the presence of a general motor skills factor, although 38% of the common variance in the DCD-Q items remained attributable to the 5 subdomains. Using one of the bifactor models, measurement invariance was also supported for DCD-Q across sex, race, and co-occurring conditions of language disorder and intellectual disability. Only partial invariance was supported when testing DCD-Q scores across different age groups. These findings reveal a more complex dimensional picture of the DCD-Q in children with ASD. Results suggest that the DCD-Q can be used in two ways, total scores adequately assess general motor skills for brief screening and subdomain scores offer unique information on the multidimensional motor problems of children with ASD. If subdomain data are of interest, our findings call into question the practice of relying on 3 original subscales of the DCD-Q when screening for ASD-related motor difficulties, whereas 4 out of 5 subscale scores may better highlight domain-specific motor problems. Future studies should continue to further validate DCD-Q's ability to screen for multidimensional motor problems. En ligne : http://dx.doi.org/https://doi.org/10.1002/aur.2904 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=503
in Autism Research > 16-5 (May 2023) . - p.967-980[article] Cross-replicating findings on unique motor impairments of children with ASD using confirmatory factor analysis and a novel SPARK study sample [Texte imprimé et/ou numérique] / Anjana BHAT, Auteur ; David S. TULSKY, Auteur ; Aaron J. BOULTON, Auteur . - p.967-980.
Langues : Anglais (eng)
in Autism Research > 16-5 (May 2023) . - p.967-980
Index. décimale : PER Périodiques Résumé : Abstract A series of recent reports have shed light on the pervasive nature of motor impairments in children with ASD (Bhat, 2020, 2021, Bhat et al., 2022), underscoring the importance of providing ASD clinicians efficient and accurate tools for motor screening. The Developmental Coordination Disorder-Questionnaire (DCD-Q) is a widely used motor screening tool, yet scant evidence exists regarding its psychometric properties in children with ASD. In a recent Exploratory Factor Analysis (EFA) of the 15-item DCD-Q in a large sample of children with ASD (SPARK study), we found a 5-factor latent structure that identified unique motor impairments in a large sample of children with ASD (Bhat et al., 2022). In the current study, we extend this work by cross-replicating the EFA findings of unique ASD-related motor issues using Confirmatory Factor Analysis (CFA) in a new, more recent wave of children with ASD from the SPARK study (N = 9721). The fits and interpretability of 11 hypothesis-driven CFA models, including 8 correlated-factors, 1 second-order, and 2 bifactor models were compared. Our findings supported the previous 5-factor model with 2 gross motor subdomains, 1 fine motor domain (similar to the original DCD-Q) and 2 general coordination subdomains. This model demonstrated acceptable fit in the new sample as well as superior fit compared to several other parsimonious correlated-factors models. However, the second-order and bifactor models fit slightly better and supported the presence of a general motor skills factor, although 38% of the common variance in the DCD-Q items remained attributable to the 5 subdomains. Using one of the bifactor models, measurement invariance was also supported for DCD-Q across sex, race, and co-occurring conditions of language disorder and intellectual disability. Only partial invariance was supported when testing DCD-Q scores across different age groups. These findings reveal a more complex dimensional picture of the DCD-Q in children with ASD. Results suggest that the DCD-Q can be used in two ways, total scores adequately assess general motor skills for brief screening and subdomain scores offer unique information on the multidimensional motor problems of children with ASD. If subdomain data are of interest, our findings call into question the practice of relying on 3 original subscales of the DCD-Q when screening for ASD-related motor difficulties, whereas 4 out of 5 subscale scores may better highlight domain-specific motor problems. Future studies should continue to further validate DCD-Q's ability to screen for multidimensional motor problems. En ligne : http://dx.doi.org/https://doi.org/10.1002/aur.2904 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=503 Multidimensional motor performance in children with autism mostly remains stable with age and predicts social communication delay, language delay, functional delay, and repetitive behavior severity after accounting for intellectual disability or cognitive delay: A SPARK dataset analysis / Anjana BHAT in Autism Research, 16-1 (January 2023)
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Titre : Multidimensional motor performance in children with autism mostly remains stable with age and predicts social communication delay, language delay, functional delay, and repetitive behavior severity after accounting for intellectual disability or cognitive delay: A SPARK dataset analysis Type de document : Texte imprimé et/ou numérique Auteurs : Anjana BHAT, Auteur Article en page(s) : p.208-229 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Abstract When motor difficulties continue into adolescence/adulthood, they could negatively impact an individual with autism spectrum disorder (ASD)'s daily living skills, physical fitness, as well as physical and mental health/well-being. Few studies have examined motor difficulties in children with ASD as a function of sex or age; however, greater cognitive challenges are associated with worse general motor performance. Based on the Developmental Coordination Disorder-Questionnaire (DCD-Q) data from the SPARK study sample, 87%-88% children with ASD were at-risk for a general motor impairment that persisted until 15 years and was related to their core and co-occurring difficulties. Bhat et al. confirmed motor difficulties in children with ASD on multiple motor dimensions that predicted core and co-occurring conditions after accounting for age and sex. However, presence of intellectual disability (ID) or cognitive delay was not controlled in the previous analysis. Additionally, the effects of age, sex, and cognitive ability on multidimensional motor difficulties of the SPARK sample have not been discussed before. Therefore, this analysis examines the effects of age, sex, and cognitive ability (presence of ID or level of cognitive delay) on the motor performance of children from the SPARK sample using the DCD-Q. Except fine motor skills, multiple motor domains did not change with age in children with ASD. Females without ID improved their fine motor scores with age, and performed better compared to males without ID. Children with ASD and ID had greater motor difficulties across multiple motor domains than those without ID. Even after controlling for age, sex, and presence of ID/cognitive delay; motor performance was predictive of social communication skills, repetitive behavior severity, as well as language and functional delays. Gross motor skills contributed more than fine motor and general motor competence skills in predicting social communication delay. However, fine motor and general motor competence skills contributed more than gross motor skills in predicting repetitive behavior severity and language delay. Both, fine and gross motor skills predicted functional delay. In light of consistent findings on motor difficulties in children with ASD, adding motor issues as a specifier within the ASD definition could provide a clear clinical route for movement clinicians to address motor difficulties of individuals with ASD. En ligne : https://doi.org/10.1002/aur.2870 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=492
in Autism Research > 16-1 (January 2023) . - p.208-229[article] Multidimensional motor performance in children with autism mostly remains stable with age and predicts social communication delay, language delay, functional delay, and repetitive behavior severity after accounting for intellectual disability or cognitive delay: A SPARK dataset analysis [Texte imprimé et/ou numérique] / Anjana BHAT, Auteur . - p.208-229.
Langues : Anglais (eng)
in Autism Research > 16-1 (January 2023) . - p.208-229
Index. décimale : PER Périodiques Résumé : Abstract When motor difficulties continue into adolescence/adulthood, they could negatively impact an individual with autism spectrum disorder (ASD)'s daily living skills, physical fitness, as well as physical and mental health/well-being. Few studies have examined motor difficulties in children with ASD as a function of sex or age; however, greater cognitive challenges are associated with worse general motor performance. Based on the Developmental Coordination Disorder-Questionnaire (DCD-Q) data from the SPARK study sample, 87%-88% children with ASD were at-risk for a general motor impairment that persisted until 15 years and was related to their core and co-occurring difficulties. Bhat et al. confirmed motor difficulties in children with ASD on multiple motor dimensions that predicted core and co-occurring conditions after accounting for age and sex. However, presence of intellectual disability (ID) or cognitive delay was not controlled in the previous analysis. Additionally, the effects of age, sex, and cognitive ability on multidimensional motor difficulties of the SPARK sample have not been discussed before. Therefore, this analysis examines the effects of age, sex, and cognitive ability (presence of ID or level of cognitive delay) on the motor performance of children from the SPARK sample using the DCD-Q. Except fine motor skills, multiple motor domains did not change with age in children with ASD. Females without ID improved their fine motor scores with age, and performed better compared to males without ID. Children with ASD and ID had greater motor difficulties across multiple motor domains than those without ID. Even after controlling for age, sex, and presence of ID/cognitive delay; motor performance was predictive of social communication skills, repetitive behavior severity, as well as language and functional delays. Gross motor skills contributed more than fine motor and general motor competence skills in predicting social communication delay. However, fine motor and general motor competence skills contributed more than gross motor skills in predicting repetitive behavior severity and language delay. Both, fine and gross motor skills predicted functional delay. In light of consistent findings on motor difficulties in children with ASD, adding motor issues as a specifier within the ASD definition could provide a clear clinical route for movement clinicians to address motor difficulties of individuals with ASD. En ligne : https://doi.org/10.1002/aur.2870 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=492 Relationship between service receipt during the COVID-19 pandemic and autistic children's multisystem outcomes and autism severity: A SPARK dataset analysis / Jung-Mei Tsai ; Anjana BHAT in Autism Research, 18-1 (January 2025)
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Titre : Relationship between service receipt during the COVID-19 pandemic and autistic children's multisystem outcomes and autism severity: A SPARK dataset analysis : Autism Research Type de document : Texte imprimé et/ou numérique Auteurs : Jung-Mei Tsai, Auteur ; Anjana BHAT, Auteur Article en page(s) : p.217-229 Langues : Anglais (eng) Mots-clés : ABA autism severity autism spectrum disorder (ASD) communication COVID-19 mental health services OT PT Index. décimale : PER Périodiques Résumé : Abstract Children with autism spectrum disorder (ASD) display a variety of core and co-occurring difficulties in social, communication, everyday functioning, cognitive, motor, and language domains. Receiving a combination of services to accommodate needs of autistic individuals is essential for improving their future outcomes. During the COVID-19 pandemic, reduced service access negatively impacted autistic children's outcomes. This study aimed to examine the relationship between service receipt and parental perceived outcomes in autistic children while accounting for various demographic, child, and parental factors. We utilized parental COVID-19 impact survey data from the SPARK study (N?=?6067). Ordinal logistic regression analyses were used to predict perceived child outcomes. Demographic, child, and parental factors were included in the prediction models. Service receipt of SLT, ABA, PT/OT, MED, and MH were associated with perceived child outcomes. PT/OT and ABA predicted improvements in domains of social interaction, everyday activity, and overall autism severity; SLT and ABA contributed to improved perceived communication outcomes. Receiving MH and MED services was associated with worsening of perceived outcomes on all domains. Younger age, males, higher family income, lower autism severity, lower motor, function, and cognitive delay, greater language delay, and the absence of parental mental health issues were associated with greater improvements in various perceived outcomes. Overall, PT/OT and ABA services are associated with improved perceived social and functional outcomes whereas SLT and ABA services are associated with improved perceived communication outcomes. We also provide a wholistic view of factors affecting relationships between service receipt and perceived child outcomes during the pandemic. En ligne : https://doi.org/10.1002/aur.3256 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=546
in Autism Research > 18-1 (January 2025) . - p.217-229[article] Relationship between service receipt during the COVID-19 pandemic and autistic children's multisystem outcomes and autism severity: A SPARK dataset analysis : Autism Research [Texte imprimé et/ou numérique] / Jung-Mei Tsai, Auteur ; Anjana BHAT, Auteur . - p.217-229.
Langues : Anglais (eng)
in Autism Research > 18-1 (January 2025) . - p.217-229
Mots-clés : ABA autism severity autism spectrum disorder (ASD) communication COVID-19 mental health services OT PT Index. décimale : PER Périodiques Résumé : Abstract Children with autism spectrum disorder (ASD) display a variety of core and co-occurring difficulties in social, communication, everyday functioning, cognitive, motor, and language domains. Receiving a combination of services to accommodate needs of autistic individuals is essential for improving their future outcomes. During the COVID-19 pandemic, reduced service access negatively impacted autistic children's outcomes. This study aimed to examine the relationship between service receipt and parental perceived outcomes in autistic children while accounting for various demographic, child, and parental factors. We utilized parental COVID-19 impact survey data from the SPARK study (N?=?6067). Ordinal logistic regression analyses were used to predict perceived child outcomes. Demographic, child, and parental factors were included in the prediction models. Service receipt of SLT, ABA, PT/OT, MED, and MH were associated with perceived child outcomes. PT/OT and ABA predicted improvements in domains of social interaction, everyday activity, and overall autism severity; SLT and ABA contributed to improved perceived communication outcomes. Receiving MH and MED services was associated with worsening of perceived outcomes on all domains. Younger age, males, higher family income, lower autism severity, lower motor, function, and cognitive delay, greater language delay, and the absence of parental mental health issues were associated with greater improvements in various perceived outcomes. Overall, PT/OT and ABA services are associated with improved perceived social and functional outcomes whereas SLT and ABA services are associated with improved perceived communication outcomes. We also provide a wholistic view of factors affecting relationships between service receipt and perceived child outcomes during the pandemic. En ligne : https://doi.org/10.1002/aur.3256 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=546 Short report on research trends during the COVID-19 pandemic and use of telehealth interventions and remote brain research in children with autism spectrum disorder / Wan-Chun SU in Autism, 26-6 (August 2022)
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Titre : Short report on research trends during the COVID-19 pandemic and use of telehealth interventions and remote brain research in children with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Wan-Chun SU, Auteur ; Sudha SRINIVASAN, Auteur ; Corina CLEFFI, Auteur ; Anjana BHAT, Auteur Article en page(s) : p.1816-1822 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder Brain/diagnostic imaging covid-19 Child Humans Pandemics SARS-CoV-2 Telemedicine Covid-19 autism neuroimaging remote brain research telehealth interest. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Index. décimale : PER Périodiques Résumé : The COVID-19 pandemic has caused disruption in F2F healthcare delivery and neuroimaging research, especially when involving vulnerable populations such as children with autism spectrum disorder. Given the easy access to multiple video conferencing platforms, many healthcare services have moved to an online delivery format (i.e. telehealth). It is important to monitor the behavioral and neural effects of telehealth interventions and resume neuroimaging research while adopting public health safety protocols to control the risk of COVID-19 transmission. We summarize existing safety protocols and our own experience from in-person functional near-infrared spectroscopy neuroimaging data collection (on-site, at home, and in outdoor settings), as well as potential opportunities of using online data sharing and low-cost, remote neuroimaging/electrophysiological techniques to continue brain research during the pandemic. En ligne : http://dx.doi.org/10.1177/13623613211004795 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=484
in Autism > 26-6 (August 2022) . - p.1816-1822[article] Short report on research trends during the COVID-19 pandemic and use of telehealth interventions and remote brain research in children with autism spectrum disorder [Texte imprimé et/ou numérique] / Wan-Chun SU, Auteur ; Sudha SRINIVASAN, Auteur ; Corina CLEFFI, Auteur ; Anjana BHAT, Auteur . - p.1816-1822.
Langues : Anglais (eng)
in Autism > 26-6 (August 2022) . - p.1816-1822
Mots-clés : Autism Spectrum Disorder Brain/diagnostic imaging covid-19 Child Humans Pandemics SARS-CoV-2 Telemedicine Covid-19 autism neuroimaging remote brain research telehealth interest. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Index. décimale : PER Périodiques Résumé : The COVID-19 pandemic has caused disruption in F2F healthcare delivery and neuroimaging research, especially when involving vulnerable populations such as children with autism spectrum disorder. Given the easy access to multiple video conferencing platforms, many healthcare services have moved to an online delivery format (i.e. telehealth). It is important to monitor the behavioral and neural effects of telehealth interventions and resume neuroimaging research while adopting public health safety protocols to control the risk of COVID-19 transmission. We summarize existing safety protocols and our own experience from in-person functional near-infrared spectroscopy neuroimaging data collection (on-site, at home, and in outdoor settings), as well as potential opportunities of using online data sharing and low-cost, remote neuroimaging/electrophysiological techniques to continue brain research during the pandemic. En ligne : http://dx.doi.org/10.1177/13623613211004795 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=484 Why add motor to the definition of ASD: A response to Bishop et al.'s critique of Bhat (2021) / Anjana BHAT in Autism Research, 15-8 (August 2022)
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Titre : Why add motor to the definition of ASD: A response to Bishop et al.'s critique of Bhat (2021) Type de document : Texte imprimé et/ou numérique Auteurs : Anjana BHAT, Auteur Article en page(s) : p.1376-1379 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder/diagnosis Humans Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1002/aur.2776 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=483
in Autism Research > 15-8 (August 2022) . - p.1376-1379[article] Why add motor to the definition of ASD: A response to Bishop et al.'s critique of Bhat (2021) [Texte imprimé et/ou numérique] / Anjana BHAT, Auteur . - p.1376-1379.
Langues : Anglais (eng)
in Autism Research > 15-8 (August 2022) . - p.1376-1379
Mots-clés : Autism Spectrum Disorder/diagnosis Humans Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1002/aur.2776 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=483