Genetic Epidemiology, Translational Neurogenomics, Psychiatric Genetics and Statistical Genetics Laboratories investigate the pattern of disease in families, particularly identical and non-identical twins, to assess the relative importance of genes and environment in a variety of important health problems.
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PMID
10541664
TITLE
Somatic distress as a distinct psychological dimension.
ABSTRACT
BACKGROUND NlmCategory: BACKGROUND
Somatoform disorders such as neurasthenia and chronic fatigue are characterized by a combination of prolonged fatigue and disabling neuropsychological and neuromuscular symptoms. However, the debate concerning the theoretical underpinnings of somatic disorders resembles the perennial dispute over the taxonomy of anxiety and depression. The objective of this study is to analyse the dimensional structure of items measuring anxiety, depression, phobic anxiety, somatic distress, and insomnia. It is anticipated that somatic distress should emerge as empirically distinct from measures of anxiety and depression, thereby lending support to proponents of the construct as independent of both anxiety and depression symptomatology.
METHODS NlmCategory: METHODS
A 33-item self-report symptom inventory derived from the SCL-90 and DSSI/sAD scales was used to measure recently experienced psychiatric distress in the form of depression, anxiety, phobic anxiety, somatic distress, and insomnia. SCL and DSSI/sAD items were measured on a four-point distress scale from 1 'not-at-all' to 4 'unbearably'. The inventory was administered to a community-based sample of 3468 Australian twins between the ages of 18 and 28.
RESULTS NlmCategory: RESULTS
Factor analysis using Polychoric correlations and a Promax rotation criterion produced four factors: depression, phobic anxiety, somatic distress, and sleep disturbance.
CONCLUSION NlmCategory: CONCLUSIONS
Results from the current factor analysis, together with the documented prevalence of somatic disorders, including evidence regarding the genetic and biological independence of somatic symptomatology, lend support to the argument that somatic symptoms, although correlated, are independent of anxiety and depression.
DATE PUBLISHED
1999 Sep
HISTORY
PUBSTATUS PUBSTATUSDATE
pubmed 1999/12/14
medline 1999/12/14 00:01
entrez 1999/12/14 00:00
AUTHORS
NAME COLLECTIVENAME LASTNAME FORENAME INITIALS AFFILIATION AFFILIATIONINFO
Gillespie N Gillespie N N Epidemiology Unit, Queensland Institute of Medical Research, Post Office, Royal Brisbane Hospital, Brisbane QLD 4029, Australia. nathanG@qimr.edu.au
Kirk KM Kirk K M KM
Heath AC Heath A C AC
Martin NG Martin N G NG
Hickie I Hickie I I
INVESTIGATORS
JOURNAL
VOLUME: 34
ISSUE: 9
TITLE: Social psychiatry and psychiatric epidemiology
ISOABBREVIATION: Soc Psychiatry Psychiatr Epidemiol
YEAR: 1999
MONTH: Sep
DAY:
MEDLINEDATE:
SEASON:
CITEDMEDIUM: Print
ISSN: 0933-7954
ISSNTYPE: Print
MEDLINE JOURNAL
MEDLINETA: Soc Psychiatry Psychiatr Epidemiol
COUNTRY: Germany
ISSNLINKING: 0933-7954
NLMUNIQUEID: 8804358
PUBLICATION TYPE
PUBLICATIONTYPE TEXT
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S.
Twin Study
COMMENTS AND CORRECTIONS
GRANTS
GRANTID AGENCY COUNTRY
AA04535 NIAAA NIH HHS United States
AA07728 NIAAA NIH HHS United States
AA10249 NIAAA NIH HHS United States
GENERAL NOTE
KEYWORDS
MESH HEADINGS
DESCRIPTORNAME QUALIFIERNAME
Adult
Anxiety psychology
Australia psychology
Depression psychology
Factor Analysis, Statistical psychology
Female psychology
Humans psychology
Male psychology
Models, Psychological psychology
Phobic Disorders psychology
Psychiatric Status Rating Scales psychology
Questionnaires psychology
Registries statistics & numerical data
Sampling Studies statistics & numerical data
Sleep Initiation and Maintenance Disorders psychology
Somatoform Disorders psychology
SUPPLEMENTARY MESH
GENE SYMBOLS
CHEMICALS
OTHER ID's