The changing prevalence of autism in California.

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Title:	The changing prevalence of autism in California.
Authors:	Croen LA (AUTHOR), Grether JK (AUTHOR), Hoogstrate J (AUTHOR), Selvin S (AUTHOR)
Source:	Journal of Autism & Developmental Disorders. Jun2002, Vol. 32 Issue 3, p207-215. 9p.
Abstract:	We conducted a population-based study of eight successive California births cohorts to examine the degree to which improvements in detection and changes in diagnosis contribute to the observed increase in autism prevalence. Children born in 1987-1994 who had autism were identified from the statewide agency responsible for coordinating services for individuals with developmental disabilities. To evaluate the role of diagnostic substitution, trends in prevalence of mental retardation without autism were also investigated. A total of 5038 children with full syndrome autism were identified from 4,590,333 California births, a prevalence of 11.0 per 10,000. During the study period, prevalence increased from 5.8 to 14.9 per 10,000, for an absolute change of 9.1 per 10,000. The pattern of increase was not influenced by maternal age, race/ethnicity, education, child gender, or plurality. During the same period, the prevalence of mental retardation without autism decreased from 28.8 to 19.5 per 10,000, for an absolute change of 9.3 per 10,000. These data suggest that improvements in detection and changes in diagnosis account for the observed increase in autism; whether there has also been a true increase in incidence is not known. [ABSTRACT FROM AUTHOR]
	Copyright of Journal of Autism & Developmental Disorders is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database:	Psychology and Behavioral Sciences Collection

FullText	Links: – Type: pdflink Text: Availability: 0
Header	DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 106978691 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0
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Items	– Name: Title Label: Title Group: Ti Data: The changing prevalence of autism in California. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Croen+LA%22">Croen LA</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Grether+JK%22">Grether JK</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hoogstrate+J%22">Hoogstrate J</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Selvin+S%22">Selvin S</searchLink> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Autism+%26+Developmental+Disorders%22">Journal of Autism & Developmental Disorders</searchLink>. Jun2002, Vol. 32 Issue 3, p207-215. 9p. – Name: Abstract Label: Abstract Group: Ab Data: We conducted a population-based study of eight successive California births cohorts to examine the degree to which improvements in detection and changes in diagnosis contribute to the observed increase in autism prevalence. Children born in 1987-1994 who had autism were identified from the statewide agency responsible for coordinating services for individuals with developmental disabilities. To evaluate the role of diagnostic substitution, trends in prevalence of mental retardation without autism were also investigated. A total of 5038 children with full syndrome autism were identified from 4,590,333 California births, a prevalence of 11.0 per 10,000. During the study period, prevalence increased from 5.8 to 14.9 per 10,000, for an absolute change of 9.1 per 10,000. The pattern of increase was not influenced by maternal age, race/ethnicity, education, child gender, or plurality. During the same period, the prevalence of mental retardation without autism decreased from 28.8 to 19.5 per 10,000, for an absolute change of 9.3 per 10,000. These data suggest that improvements in detection and changes in diagnosis account for the observed increase in autism; whether there has also been a true increase in incidence is not known. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Autism & Developmental Disorders is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo	BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1023/a:1015453830880 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 207 Titles: – TitleFull: The changing prevalence of autism in California. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Croen LA – PersonEntity: Name: NameFull: Grether JK – PersonEntity: Name: NameFull: Hoogstrate J – PersonEntity: Name: NameFull: Selvin S IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2002 Type: published Y: 2002 Identifiers: – Type: issn-print Value: 01623257 Numbering: – Type: volume Value: 32 – Type: issue Value: 3 Titles: – TitleFull: Journal of Autism & Developmental Disorders Type: main
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