Linked Life Data

10667752

Source:http://linkedlifedata.com/resource/pubmed/id/10667752

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2000-3-3
pubmed:abstractText
Factor analytical studies of schizophrenia symptoms have consistently suggested three or more symptom dimensions, but it is not known whether any of these dimensions have a genetic basis. The purpose of this study was to investigate to what extent the dimensions show familial aggregation. Symptom ratings were made using the SAPS and SANS and the OPCRIT checklist on the members of 109 sibling pairs with DSM-IV schizophrenia or schizoaffective disorder. Factor analyses were performed on the ratings of both instruments, and correlations were made of within-pair factor scores. Analyses were also performed on the 89 pairs in which both members had a diagnosis of schizophrenia. Factor analysis of SAPS and SANS ratings resulted in positive, negative, and disorganization factors; analysis of OPCRIT ratings resulted in positive, negative, disorganization, and first-rank delusion factors. Only the disorganization dimension showed significant within-pair correlations, but these were of modest size and not significantly greater than the correlations for the other dimensions. None of the dimensions showed sufficient familial aggregation to suggest that they are close markers of genetic or common environmental factors that contribute liability to schizophrenia. They may be weakly associated with such factors and with factors that do not contribute liability to schizophrenia but do influence the form taken by the illness.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0586-7614
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
841-50
pubmed:dateRevised
2010-2-16
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Dimensions of psychosis in affected sibling pairs.
pubmed:affiliation
Medical Research Council, Department of Psychological Medicine, University of Wales College of Medicine, Cardiff, UK. wpcagc@cardiff.ac.uk
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't