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Prevalence and time trends of disabilities in school-age children.

Prevalence and time trends of disabilities in school-age children. BACKGROUND: Although the evolution of the prevalence of cerebral palsy is now well documented, much less is known about the evolution of the prevalence of other disabilities such as mental retardation, sensorial defects, autism and psychosis. The aim of this paper is to determine those trends. METHODS: A population-based survey was carried out in 1992-1993 in three French 'départments'. All disabled children born between 1976 and 1985 and receiving a special education and/or financial assistance were systematically registered. RESULTS: The comparison of three cohorts of children born in 1976-1978, 1979-1981 and 1982-1984 using the test for trend in proportion showed a significant decrease (P = 0.03) in the prevalence of severe mental retardation, after exclusion of Down syndrome. This decrease was significant for severe mental retardation associated with psychosis. The time trend prevalence for cerebral palsy increased (P = 0.03) but was irregular. The time trend prevalence of other disabilities (other motor defects, severe sensorial disabilities, autism and psychosis) did not change significantly. A detailed analysis of severe mental retardation and cerebral palsy was performed by geographical area, age at first registration and type of disability. CONCLUSION: The increase in prevalence of cerebral palsy is possibly due to earlier registration of disabled children. The decrease in prevalence of severe mental retardation does not seem to be due to recruitment bias, but there is a possibility of classification bias. « Previous | Next Article » Table of Contents This Article Int. J. Epidemiol. (1997) 26 (1): 137-145. doi: 10.1093/ije/26.1.137 » Abstract Free Full Text (PDF) Free Services Article metrics Alert me when cited Alert me if corrected Find similar articles Similar articles in Web of Science Similar articles in PubMed Add to my archive Download citation Request Permissions Citing Articles Load citing article information Citing articles via CrossRef Citing articles via Scopus Citing articles via Web of Science Citing articles via Google Scholar Google Scholar Articles by Rumeau-Rouquette, C. Articles by Verrier, A. Search for related content PubMed PubMed citation Articles by Rumeau-Rouquette, C. Articles by Grandjean, H. Articles by Cans, C. Articles by du Mazaubrun, C. Articles by Verrier, A. Related Content Load related web page information Share Email this article CiteULike Delicious Facebook Google+ Mendeley Twitter What's this? Search this journal: Advanced » Current Issue August 2015 44 (4) Alert me to new issues The Journal About this journal Publishers' Books for Review Rights & Permissions Dispatch date of the next issue This journal is a member of the Committee on Publication Ethics (COPE) We are mobile – find out more Journals Career Network Published on behalf of The International Epidemiological Association Impact factor: 9.176 5-Yr impact factor: 8.615 Co-Editors G Davey Smith & S Ebrahim View full editorial board For Authors Instructions to authors Online submission instructions Submit now! Self-archiving policy Open access options for authors - visit Oxford Open This journal enables compliance with the NIH Public Access Policy Alerting Services Email table of contents Email Advance Access CiteTrack XML RSS feed Corporate Services Advertising sales Reprints Supplements var taxonomies = ("MED00860"); Most Most Read Why are children in the same family so different from one another? Population ageing in the United States of America: implications for public programmes Classification of epidemiological study designs Health in Cuba Sick individuals and sick populations » View all Most Read articles Most Cited 'Mendelian randomization': can genetic epidemiology contribute to understanding environmental determinants of disease? Sick Individuals and Sick Populations Food-Based Validation of a Dietary Questionnaire: The Effects of Week-to-Week Variation in Food Consumption A life course approach to chronic disease epidemiology: conceptual models, empirical challenges and interdisciplinary perspectives The use of fractional polynomials to model continuous risk variables in epidemiology » View all Most Cited articles Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department. Online ISSN 1464-3685 - Print ISSN 0300-5771 Copyright © 2015 International Epidemiological Association Oxford Journals Oxford University Press Site Map Privacy Policy Cookie Policy Legal Notices Frequently Asked Questions Other Oxford University Press sites: Oxford University Press Oxford Journals China Oxford Journals Japan Academic & Professional books Children's & Schools Books Dictionaries & Reference Dictionary of National Biography Digital Reference English Language Teaching Higher Education Textbooks International Education Unit Law Medicine Music Online Products & Publishing Oxford Bibliographies Online Oxford Dictionaries Online Oxford English Dictionary Oxford Language Dictionaries Online Oxford Scholarship Online Reference Rights and Permissions Resources for Retailers & Wholesalers Resources for the Healthcare Industry Very Short Introductions World's Classics function fnc_onDomLoaded() { var query_context = getQueryContext(); PF_initOIUnderbar(query_context,":QS:default","","JRN"); PF_insertOIUnderbar(0); }; if (window.addEventListener) { window.addEventListener('load', fnc_onDomLoaded, false); } else if (window.attachEvent) { window.attachEvent('onload', fnc_onDomLoaded); } var gaJsHost = (("https:" == document.location.protocol) ? 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Prevalence and time trends of disabilities in school-age children.

Prevalence and time trends of disabilities in school-age children.

International Journal of Epidemiology , Volume 26 (1) – Feb 1, 1997

Abstract

BACKGROUND: Although the evolution of the prevalence of cerebral palsy is now well documented, much less is known about the evolution of the prevalence of other disabilities such as mental retardation, sensorial defects, autism and psychosis. The aim of this paper is to determine those trends. METHODS: A population-based survey was carried out in 1992-1993 in three French 'départments'. All disabled children born between 1976 and 1985 and receiving a special education and/or financial assistance were systematically registered. RESULTS: The comparison of three cohorts of children born in 1976-1978, 1979-1981 and 1982-1984 using the test for trend in proportion showed a significant decrease (P = 0.03) in the prevalence of severe mental retardation, after exclusion of Down syndrome. This decrease was significant for severe mental retardation associated with psychosis. The time trend prevalence for cerebral palsy increased (P = 0.03) but was irregular. The time trend prevalence of other disabilities (other motor defects, severe sensorial disabilities, autism and psychosis) did not change significantly. A detailed analysis of severe mental retardation and cerebral palsy was performed by geographical area, age at first registration and type of disability. CONCLUSION: The increase in prevalence of cerebral palsy is possibly due to earlier registration of disabled children. The decrease in prevalence of severe mental retardation does not seem to be due to recruitment bias, but there is a possibility of classification bias. « Previous | Next Article » Table of Contents This Article Int. J. Epidemiol. (1997) 26 (1): 137-145. doi: 10.1093/ije/26.1.137 » Abstract Free Full Text (PDF) Free Services Article metrics Alert me when cited Alert me if corrected Find similar articles Similar articles in Web of Science Similar articles in PubMed Add to my archive Download citation Request Permissions Citing Articles Load citing article information Citing articles via CrossRef Citing articles via Scopus Citing articles via Web of Science Citing articles via Google Scholar Google Scholar Articles by Rumeau-Rouquette, C. Articles by Verrier, A. Search for related content PubMed PubMed citation Articles by Rumeau-Rouquette, C. Articles by Grandjean, H. Articles by Cans, C. Articles by du Mazaubrun, C. Articles by Verrier, A. Related Content Load related web page information Share Email this article CiteULike Delicious Facebook Google+ Mendeley Twitter What's this? Search this journal: Advanced » Current Issue August 2015 44 (4) Alert me to new issues The Journal About this journal Publishers' Books for Review Rights & Permissions Dispatch date of the next issue This journal is a member of the Committee on Publication Ethics (COPE) We are mobile – find out more Journals Career Network Published on behalf of The International Epidemiological Association Impact factor: 9.176 5-Yr impact factor: 8.615 Co-Editors G Davey Smith & S Ebrahim View full editorial board For Authors Instructions to authors Online submission instructions Submit now! Self-archiving policy Open access options for authors - visit Oxford Open This journal enables compliance with the NIH Public Access Policy Alerting Services Email table of contents Email Advance Access CiteTrack XML RSS feed Corporate Services Advertising sales Reprints Supplements var taxonomies = ("MED00860"); Most Most Read Why are children in the same family so different from one another? Population ageing in the United States of America: implications for public programmes Classification of epidemiological study designs Health in Cuba Sick individuals and sick populations » View all Most Read articles Most Cited 'Mendelian randomization': can genetic epidemiology contribute to understanding environmental determinants of disease? Sick Individuals and Sick Populations Food-Based Validation of a Dietary Questionnaire: The Effects of Week-to-Week Variation in Food Consumption A life course approach to chronic disease epidemiology: conceptual models, empirical challenges and interdisciplinary perspectives The use of fractional polynomials to model continuous risk variables in epidemiology » View all Most Cited articles Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department. Online ISSN 1464-3685 - Print ISSN 0300-5771 Copyright © 2015 International Epidemiological Association Oxford Journals Oxford University Press Site Map Privacy Policy Cookie Policy Legal Notices Frequently Asked Questions Other Oxford University Press sites: Oxford University Press Oxford Journals China Oxford Journals Japan Academic & Professional books Children's & Schools Books Dictionaries & Reference Dictionary of National Biography Digital Reference English Language Teaching Higher Education Textbooks International Education Unit Law Medicine Music Online Products & Publishing Oxford Bibliographies Online Oxford Dictionaries Online Oxford English Dictionary Oxford Language Dictionaries Online Oxford Scholarship Online Reference Rights and Permissions Resources for Retailers & Wholesalers Resources for the Healthcare Industry Very Short Introductions World's Classics function fnc_onDomLoaded() { var query_context = getQueryContext(); PF_initOIUnderbar(query_context,":QS:default","","JRN"); PF_insertOIUnderbar(0); }; if (window.addEventListener) { window.addEventListener('load', fnc_onDomLoaded, false); } else if (window.attachEvent) { window.attachEvent('onload', fnc_onDomLoaded); } var gaJsHost = (("https:" == document.location.protocol) ? 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References (27)

Publisher
Oxford University Press
Copyright
Copyright © 2015 International Epidemiological Association
ISSN
0300-5771
eISSN
1464-3685
DOI
10.1093/ije/26.1.137
Publisher site
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Abstract

BACKGROUND: Although the evolution of the prevalence of cerebral palsy is now well documented, much less is known about the evolution of the prevalence of other disabilities such as mental retardation, sensorial defects, autism and psychosis. The aim of this paper is to determine those trends. METHODS: A population-based survey was carried out in 1992-1993 in three French 'départments'. All disabled children born between 1976 and 1985 and receiving a special education and/or financial assistance were systematically registered. RESULTS: The comparison of three cohorts of children born in 1976-1978, 1979-1981 and 1982-1984 using the test for trend in proportion showed a significant decrease (P = 0.03) in the prevalence of severe mental retardation, after exclusion of Down syndrome. This decrease was significant for severe mental retardation associated with psychosis. The time trend prevalence for cerebral palsy increased (P = 0.03) but was irregular. The time trend prevalence of other disabilities (other motor defects, severe sensorial disabilities, autism and psychosis) did not change significantly. A detailed analysis of severe mental retardation and cerebral palsy was performed by geographical area, age at first registration and type of disability. CONCLUSION: The increase in prevalence of cerebral palsy is possibly due to earlier registration of disabled children. The decrease in prevalence of severe mental retardation does not seem to be due to recruitment bias, but there is a possibility of classification bias. « Previous | Next Article » Table of Contents This Article Int. J. Epidemiol. (1997) 26 (1): 137-145. doi: 10.1093/ije/26.1.137 » Abstract Free Full Text (PDF) Free Services Article metrics Alert me when cited Alert me if corrected Find similar articles Similar articles in Web of Science Similar articles in PubMed Add to my archive Download citation Request Permissions Citing Articles Load citing article information Citing articles via CrossRef Citing articles via Scopus Citing articles via Web of Science Citing articles via Google Scholar Google Scholar Articles by Rumeau-Rouquette, C. Articles by Verrier, A. Search for related content PubMed PubMed citation Articles by Rumeau-Rouquette, C. Articles by Grandjean, H. Articles by Cans, C. Articles by du Mazaubrun, C. Articles by Verrier, A. Related Content Load related web page information Share Email this article CiteULike Delicious Facebook Google+ Mendeley Twitter What's this? Search this journal: Advanced » Current Issue August 2015 44 (4) Alert me to new issues The Journal About this journal Publishers' Books for Review Rights & Permissions Dispatch date of the next issue This journal is a member of the Committee on Publication Ethics (COPE) We are mobile – find out more Journals Career Network Published on behalf of The International Epidemiological Association Impact factor: 9.176 5-Yr impact factor: 8.615 Co-Editors G Davey Smith & S Ebrahim View full editorial board For Authors Instructions to authors Online submission instructions Submit now! Self-archiving policy Open access options for authors - visit Oxford Open This journal enables compliance with the NIH Public Access Policy Alerting Services Email table of contents Email Advance Access CiteTrack XML RSS feed Corporate Services Advertising sales Reprints Supplements var taxonomies = ("MED00860"); Most Most Read Why are children in the same family so different from one another? Population ageing in the United States of America: implications for public programmes Classification of epidemiological study designs Health in Cuba Sick individuals and sick populations » View all Most Read articles Most Cited 'Mendelian randomization': can genetic epidemiology contribute to understanding environmental determinants of disease? Sick Individuals and Sick Populations Food-Based Validation of a Dietary Questionnaire: The Effects of Week-to-Week Variation in Food Consumption A life course approach to chronic disease epidemiology: conceptual models, empirical challenges and interdisciplinary perspectives The use of fractional polynomials to model continuous risk variables in epidemiology » View all Most Cited articles Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department. Online ISSN 1464-3685 - Print ISSN 0300-5771 Copyright © 2015 International Epidemiological Association Oxford Journals Oxford University Press Site Map Privacy Policy Cookie Policy Legal Notices Frequently Asked Questions Other Oxford University Press sites: Oxford University Press Oxford Journals China Oxford Journals Japan Academic & Professional books Children's & Schools Books Dictionaries & Reference Dictionary of National Biography Digital Reference English Language Teaching Higher Education Textbooks International Education Unit Law Medicine Music Online Products & Publishing Oxford Bibliographies Online Oxford Dictionaries Online Oxford English Dictionary Oxford Language Dictionaries Online Oxford Scholarship Online Reference Rights and Permissions Resources for Retailers & Wholesalers Resources for the Healthcare Industry Very Short Introductions World's Classics function fnc_onDomLoaded() { var query_context = getQueryContext(); PF_initOIUnderbar(query_context,":QS:default","","JRN"); PF_insertOIUnderbar(0); }; if (window.addEventListener) { window.addEventListener('load', fnc_onDomLoaded, false); } else if (window.attachEvent) { window.attachEvent('onload', fnc_onDomLoaded); } var gaJsHost = (("https:" == document.location.protocol) ? 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Journal

International Journal of EpidemiologyOxford University Press

Published: Feb 1, 1997

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