Document Detail

Mild mental retardation in Gothenburg children born between 1966-70. Changes between two points of time.
MedLine Citation:
PMID:  3502206     Owner:  NLM     Status:  MEDLINE    
Changes between two points of time in prevalence rates and distribution of IQ values in mentally retarded children resident in Gothenburg, Sweden, and born between 1966-70 were analysed. The children at the first census date in 1978 were aged 8-12 years and at the second in 1984 aged 14-18 years. The population-based prevalence rates were 3.7 per 1,000 in 1978 and 3.9 in 1984 for mild mental retardation (MMR; IQ 50-70) and 3.0 and 3.3 respectively for severe mental retardation (SMR; IQ less than 50). The majority (82%) of the MMR children remained on the same intellectual and educational level. The changes that occurred were mainly downwards. Thirteen of the 91 MMR children in the 1978 series demonstrated IQ values below 50 by 1984. Ten of these 13 children had a clear biomedical origin for their retardation, e.g. six with cerebral palsy syndromes. The IQ level of three MMR children had improved to 71-85. Nineteen newcomers were identified as MMR. 14 of these had IQ test scores above 70 in 1978 including one with cerebral palsy and 5 with minimal brain dysfunction syndromes. The prevalence of children registered in the Board for Provisions and Services to the Mentally Retarded, all IQ categories included, increased from 6.7 per 1,000 in 1978 to 8.1 in 1984. One third of this increase was due to the greater recording of youths with an IQ above 75.
G Hagberg; A Lewerth; E Olsson; B Westerberg
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Upsala journal of medical sciences. Supplement     Volume:  44     ISSN:  0300-9726     ISO Abbreviation:  Ups J Med Sci Suppl     Publication Date:  1987  
Date Detail:
Created Date:  1988-05-02     Completed Date:  1988-05-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0331622     Medline TA:  Ups J Med Sci Suppl     Country:  SWEDEN    
Other Details:
Languages:  eng     Pagination:  52-7     Citation Subset:  IM    
Department of Paediatrics II, East Hospital, Göteborg, Sweden.
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MeSH Terms
Central Nervous System Diseases / complications
Child Development
Cross-Sectional Studies
Education of Mentally Retarded
Intelligence Tests
Mental Retardation / complications,  epidemiology*
Sex Factors
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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