Linked Life Data

7922745

Source:http://linkedlifedata.com/resource/pubmed/id/7922745

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1994-11-2
pubmed:abstractText
A cross-sectional epidemiological study was conducted to assess the prevalence and etiology of mental retardation (MR) among children under 14 years of age. The definition of MR and the criteria for diagnosis were adopted from WHO (1985). The IQ/DQ was evaluated with standardized psychological tests. The etiology of MR was specified by medical, genetic and psychosocial studies. A total of 862 retarded children were found among 85,170 surveyed. The overall adjusted prevalence rate was 1.20%. The percentage of mild, moderate, severe and profound MR was 60.6%, 22.7%, 9.6%, and 7.1%, respectively. Specific causes were found in 673 cases (79.1%). The etiology was unknown in 21.9% children. Timing of the causes showed prenatal in 34% perinatal 11.9%, postnatal 33%. Biomedical causes consisted of 89.6% and sociocultural factors, 10.4%. Among the prenatal factors, genetic diseases ranked first and manifested as chromosomal abnormalities and inborn errors of metabolism. Among the postnatal causes, sequelae of CNS infections and other forms of acquired brain insult were most important. Most children of socio-cultural MR were at school age and of the mild category. Our results show that most MR cases are preventable.
pubmed:language
chi
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0376-2491
pubmed:author
pubmed:issnType
Print
pubmed:volume
74
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
134-7, 189
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
[An epidemiological study on etiology of mental retardation].
pubmed:affiliation
Department of Pediatrics, First Hospital, Beijing Medical University.
pubmed:publicationType
Journal Article, Clinical Trial, English Abstract, Research Support, Non-U.S. Gov't