Quantifying Dimensions in Autism: A Factor-Analytic Study

Szatmári, Péter; Mérette, Chantal; Bryson, Susan E.; Thivierge, Jacques; Roy, Marc‐André; Cayer, Mireille; Maziade, Michel

doi:10.1097/00004583-200204000-00020

Cited by 86 publications

(61 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar to previous reports (Allen et al, 2001, deBruin et al, 2006, Matson, et al, 2007, Szatmari et al 2002, in our study (Karabekiroglu & Akbas, in press) mental retardation was significantly more prevalent in the autism than in the PDD-NOS or ADHD groups. Several investigators suggested that exploring the presence of mental retardation may be more useful in terms of planning treatment and predicting outcome than a classification based on symptom number alone (Szatmari et al, 2002). However, IQ may be a poor measure of level of functioning, based as it is on performance in a highly artificial setting (Szatmari et al 2002).…”

Section: Discussionsupporting

confidence: 92%

“…Thus, from a clinical standpoint, children whose PDD-NOS diagnosis was established before 36 months should be re-assessed at a later age (Rondeau et al, 2010). Similar to previous reports (Allen et al, 2001, deBruin et al, 2006, Matson, et al, 2007, Szatmari et al 2002, in our study (Karabekiroglu & Akbas, in press) mental retardation was significantly more prevalent in the autism than in the PDD-NOS or ADHD groups. Several investigators suggested that exploring the presence of mental retardation may be more useful in terms of planning treatment and predicting outcome than a classification based on symptom number alone (Szatmari et al, 2002).…”

Section: Discussionsupporting

confidence: 88%

“…A previous study performed a factor analysis on a sample of variant categories of PDD, and two factors emerged. One factor represented autistic symptoms and another represented level of functioning (Szatmari et al, 2002). More recent studies used a factor analytic approach based on particular diagnostic instruments, such as the Autism Diagnostic Interview-Revised (ADI-R) and the Autism Diagnostic Observation Schedule (ADOS) (Tadevosyan-Layfer et al, 2003;Tanguay, 2004).…”

Section: Cluster and Factor Analysismentioning

confidence: 99%

See 2 more Smart Citations

Pervasive Developmental Disorder- not Otherwise Specified: Specifying and Differentiating

Karabekiroğlu¹

2011

Autism Spectrum Disorders: The Role of Genetics in Diagnosis and Treatment

View full text Add to dashboard Cite

Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 88%

Section: Cluster and Factor Analysismentioning

confidence: 99%

See 1 more Smart Citation

Pervasive Developmental Disorder- not Otherwise Specified: Specifying and Differentiating

Karabekiroğlu¹

2011

Autism Spectrum Disorders: The Role of Genetics in Diagnosis and Treatment

View full text Add to dashboard Cite

“…320 Important early predictors include JA skills, functional play skills, 321 cognitive abilities, and severity of ASD symptoms. [322][323][324][325][326][327][328][329][330][331][332][333][334] Recent studies have revealed that although most children diagnosed with AD retain their diagnosis at 9 years of age, 208 many, especially those with PDD-NOS, improve, and a minority have optimal outcomes; that is, they have normal intelligence and function reasonably well in mainstream classrooms without an aid but still exhibit residual clinical signs of social awkwardness, restrictive interests, or mild, infrequent stereotypies. Some may show signs of ADHD, languagebased learning disabilities, or other learning challenges.…”

Section: Prognosismentioning

confidence: 99%

Identification and Evaluation of Children With Autism Spectrum Disorders

Johnson

Myers²

2007

Pediatrics

1,677

1,038

View full text Add to dashboard Cite

Autism spectrum disorders are not rare; many primary care pediatricians care for several children with autism spectrum disorders. Pediatricians play an important role in early recognition of autism spectrum disorders, because they usually are the first point of contact for parents. Parents are now much more aware of the early signs of autism spectrum disorders because of frequent coverage in the media; if their child demonstrates any of the published signs, they will most likely raise their concerns to their child's pediatrician. It is important that pediatricians be able to recognize the signs and symptoms of autism spectrum disorders and have a strategy for assessing them systematically. Pediatricians also must be aware of local resources that can assist in making a definitive diagnosis of, and in managing, autism spectrum disorders. The pediatrician must be familiar with developmental, educational, and community resources as well as medical subspecialty clinics. This clinical report is 1 of 2 documents that replace the original American Academy of Pediatrics policy statement and technical report published in 2001. This report addresses background information, including definition, history, epidemiology, diagnostic criteria, early signs, neuropathologic aspects, and etiologic possibilities in autism spectrum disorders. In addition, this report provides an algorithm to help the pediatrician develop a strategy for early identification of children with autism spectrum disorders. The accompanying clinical report addresses the management of children with autism spectrum disorders and follows this report on page 1162 [available at www.pediatrics.org/cgi/content/full/120/5/1162]. Both clinical reports are complemented by the toolkit titled “Autism: Caring for Children With Autism Spectrum Disorders: A Resource Toolkit for Clinicians,” which contains screening and surveillance tools, practical forms, tables, and parent handouts to assist the pediatrician in the identification, evaluation, and management of autism spectrum disorders in children.

show abstract

“…PDDs are present in as many as 1 in 150 individuals (Centers for Disease Control, n.d.). Conceptualization of autism has dramatically changed over the past 20 years and it is now well-recognized that there is enormous variability in the expression of autism (Szatmari et al 2002). Whereas it was previously believed that 70% or more of individuals with autism also had mental retardation (Rapin 1991), more recent estimates suggest that nearly half of individuals with autism may have an average or better intelligence quotient (IQ; Chakrabarti and Fombonne 2005).…”

Section: Introductionmentioning

confidence: 99%

Variability in Adaptive Behavior in Autism: Evidence for the Importance of Family History

Mazefsky

Williams

Minshew

2008

J Abnorm Child Psychol

View full text Add to dashboard Cite

Adaptive behavior in autism is highly variable and strongly related to prognosis. This study explored family history as a potential source of variability in adaptive behavior in autism. Participants included 77 individuals (mean age=18) with average or better intellectual ability and autism. Parents completed the Family History Interview about the presence of broader autism phenotype symptoms and major psychiatric disorders in first degree relatives. Adaptive behavior was assessed via the Vineland Adaptive Behavior Scales (VABS). Based on family history variables, age, and intelligence quotient (IQ), 87% of participants were correctly classified as having impaired or average VABS scores. Family history of depression and shyness accounted for the most variance in VABS scores, and they had the greatest influence on VABS Socialization scores in particular. Possible underlying mechanisms include genetics, psychosocial factors, and social resources. This study provides initial evidence of the importance of family history to adaptive behavior in autism and has implications for genetics and treatment.

show abstract

Quantifying Dimensions in Autism: A Factor-Analytic Study

Cited by 86 publications

References 30 publications

Pervasive Developmental Disorder- not Otherwise Specified: Specifying and Differentiating

Pervasive Developmental Disorder- not Otherwise Specified: Specifying and Differentiating

Identification and Evaluation of Children With Autism Spectrum Disorders

Variability in Adaptive Behavior in Autism: Evidence for the Importance of Family History

Contact Info

Product

Resources

About