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Simin He; Feixiang Zhou; Gang Tian; Yiran Cui; Yan Yan – Journal of Autism and Developmental Disorders, 2024
To investigate the association between exposure to anesthesia during three periods of pregnancy, delivery, and childhood and autism spectrum disorder (ASD). PubMed, Scopus, Web of Science, Embase, Google Scholar, PsycArticles, and PsycINFO were searched from the date of database inception to 1 December 2022. Studies reported the association…
Descriptors: Pregnancy, Anesthesiology, Autism Spectrum Disorders, Medical Services
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Gallardo-Carrasco, Maria Carmen; Jiménez-Barbero, José Antonio; Bravo-Pastor, María del Mar; Martin-Castillo, David; Sánchez-Muñoz, María – Journal of Autism and Developmental Disorders, 2022
Vitamin and fatty acid deficiency in children diagnosed with autism has been linked to the etiology and course of the disease but the results have been inconsistent. In our work, we present a narrative review, which includes 20 observational studies that provide data on the blood levels of vitamin D, folate, or fatty acids of children diagnosed…
Descriptors: Biochemistry, Autism Spectrum Disorders, Meta Analysis, Comparative Analysis
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Steenfeldt-Kristensen, Catherine; Jones, Chris A.; Richards, Caroline – Journal of Autism and Developmental Disorders, 2020
Self-injurious behaviour is purportedly common in autism, but prevalence rates have not yet been synthesised meta-analytically. In the present study, data from 14,379 participants in thirty-seven papers were analysed to generate a pooled prevalence estimate of self-injury in autism of 42% (confidence intervals 0.38-0.47). Hand-hitting topography…
Descriptors: Meta Analysis, Self Destructive Behavior, Autism, Pervasive Developmental Disorders
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Peñuelas-Calvo, Inmaculada; Sareen, Aditya; Sevilla-Llewellyn-Jones, Julia; Fernández-Berrocal, Pablo – Journal of Autism and Developmental Disorders, 2019
We conducted a meta-analysis of 18 studies to establish whether a relation exists between Reading the Mind in the Eye Test (RMET) performance and intelligence quotient (IQ) in individuals diagnosed with autism-spectrum disorders (ASD) and controls, taking into account relevant characteristics such as age, gender, and autism quotient. Our findings…
Descriptors: Meta Analysis, Control Groups, Autism, Pervasive Developmental Disorders
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Modabbernia, Amirhossein; Mollon, Josephine; Boffetta, Paolo; Reichenberg, Abraham – Journal of Autism and Developmental Disorders, 2016
We conducted meta-analyses of 67 studies on the association between neonatal proxies of impaired gas exchange and intellectual disability (ID) or autism spectrum disorders (ASD). Neonatal acidosis was associated with an odds ratio (OR) of 3.55 [95% confidence interval (95% CI) 2.23-5.49] for ID and an OR of 1.10 (95% CI 0.91-1.31) for ASD.…
Descriptors: Risk, Meta Analysis, Neonates, Correlation
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Lim, Yi Huey; Partridge, Katie; Girdler, Sonya; Morris, Susan L. – Journal of Autism and Developmental Disorders, 2017
Impairments in postural control affect the development of motor and social skills in individuals with autism spectrum disorder (ASD). This review compared the effect of different sensory conditions on static standing postural control between ASD and neurotypical individuals. Results from 19 studies indicated a large difference in postural control…
Descriptors: Human Posture, Autism, Pervasive Developmental Disorders, Meta Analysis
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Landry, Oriane; Al-Taie, Shems – Journal of Autism and Developmental Disorders, 2016
We conducted a meta-analysis of 31 studies, spanning 30 years, utilizing the WCST in participants with autism. We calculated Cohen's d effect sizes for four measures of performance: sets completed, perseveration, failure-to-maintain-set, and non-perseverative errors. The average weighted effect size ranged from 0.30 to 0.74 for each measure, all…
Descriptors: Executive Function, Cognitive Tests, Cognitive Ability, Abstract Reasoning
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Chiang, Hsu-Min; Tsai, Luke Y.; Cheung, Ying Kuen; Brown, Alice; Li, Huacheng – Journal of Autism and Developmental Disorders, 2014
A meta-analysis was performed to examine differences in IQ profiles between individuals with Asperger's disorder (AspD) and high-functioning autism (HFA). Fifty-two studies were included for this study. The results showed that (a) individuals with AspD had significantly higher full-scale IQ, verbal IQ (VIQ), and performance IQ (PIQ) than did…
Descriptors: Meta Analysis, Intelligence Quotient, Profiles, Asperger Syndrome
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Xu, Guifeng; Jing, Jin; Bowers, Katherine; Liu, Buyun; Bao, Wei – Journal of Autism and Developmental Disorders, 2014
We performed a systematic literature search regarding maternal diabetes before and during pregnancy and the risk of autism spectrum disorders (ASD) in the offspring. Of the 178 potentially relevant articles, 12 articles including three cohort studies and nine case-control studies were included in the meta-analysis. Both the meta-analyses of cohort…
Descriptors: Diabetes, Pregnancy, At Risk Persons, Literature Reviews
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Teatero, Missy L.; Netley, Charles – Journal of Autism and Developmental Disorders, 2013
Boys are more likely than girls to be diagnosed with an autism spectrum disorder (ASD). The extreme male brain (EMB) theory of ASD suggests that fetal testosterone (FT) exposure may underlie sex differences in autistic traits. A link between the organizational effects of FT on the brain and ASD is often drawn based on research using digit ratio…
Descriptors: Brain, Literature Reviews, Meta Analysis, Males
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Tsai, Luke Y. – Journal of Autism and Developmental Disorders, 2013
This review focuses on identifying up-to-date number of publications that compared DSM-IV/ICD-10 Asperger's disorder (AspD) to Autistic Disorder/High-functioning Autism (AD/HFA). One hundred and twenty-eight publications were identified through an extensive search of major electronic databases and journals. Based on more than 90 clinical…
Descriptors: Asperger Syndrome, Autism, Pervasive Developmental Disorders, Publications