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Personality traits in established schizophrenia: aspects of usability and differences between patients and controls using the Swedish universities Scales of Personality.

https://arctichealth.org/en/permalink/ahliterature278088
Source
Nord J Psychiatry. 2016 Aug;70(6):462-9
Publication Type
Article
Date
Aug-2016
Author
Tomas Fagerberg
Erik Söderman
J Petter Gustavsson
Ingrid Agartz
Erik G Jönsson
Source
Nord J Psychiatry. 2016 Aug;70(6):462-9
Date
Aug-2016
Language
English
Publication Type
Article
Keywords
Adult
Aged
Female
Humans
Male
Middle Aged
Personality
Personality Assessment - standards
Personality Disorders - diagnosis - epidemiology - psychology
Personality Inventory - standards
Reproducibility of Results
Schizophrenia - diagnosis - epidemiology
Schizophrenic Psychology
Surveys and Questionnaires - standards
Sweden - epidemiology
Universities
Abstract
Personality is considered as an important aspect that can affect symptoms and social function in persons with schizophrenia. The personality questionnaire Swedish universities Scales of Personality (SSP) has not previously been used in psychotic disorder.
To investigate if SSP has a similar internal consistency and factor structure in a psychosis population as among healthy controls and if patients with psychotic disorders differ from non-psychotic individuals in their responses to the SSP.
Patients with psychotic disorders (n?=?107) and healthy controls (n?=?119) completed SSP. SSP scores were analyzed for internal consistency and case-control differences by Cronbach's alfa and multiple analysis of covariance, respectively.
Internal consistencies among patients were overall similar to that of controls. The patients scored significantly higher in seven (Somatic trait anxiety, Psychic trait anxiety, Stress susceptibility, Lack of assertiveness, Detachment, Embitterment, Mistrust) and lower in three (Physical trait aggression, Verbal trait aggression, Adventure seeking) of the 13 scales of the inventory. In three scales (Impulsiveness, Social desirability and Trait irritability) there was no significant difference between the scoring of patients and healthy controls.
The reliability estimates suggest that SSP can be used by patients with psychotic disorders in stable remission. Patients score higher on neuroticism-related scales and lower on aggression-related scales than controls, which is in accordance with earlier studies where other personality inventories were used.
PubMed ID
27103375 View in PubMed
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Stability of personality traits over a five-year period in Swedish patients with schizophrenia spectrum disorder and non-psychotic individuals: a study using the Swedish universities scales of personality.

https://arctichealth.org/en/permalink/ahliterature293445
Source
BMC Psychiatry. 2018 02 27; 18(1):54
Publication Type
Journal Article
Research Support, Non-U.S. Gov't
Date
02-27-2018
Author
Tomas Fagerberg
Erik Söderman
J Petter Gustavsson
Ingrid Agartz
Erik G Jönsson
Author Affiliation
Human Brain Informatics (HUBIN), Department of Clinical Neuroscience, Centre for Psychiatric Research, Psychiatry Section, Karolinska Institutet and Hospital, Stockholm, Sweden. Tomas.Fagerberg@ki.se.
Source
BMC Psychiatry. 2018 02 27; 18(1):54
Date
02-27-2018
Language
English
Publication Type
Journal Article
Research Support, Non-U.S. Gov't
Keywords
Adult
Case-Control Studies
Female
Follow-Up Studies
Humans
Male
Middle Aged
Personality
Personality Disorders - diagnosis - epidemiology - psychology
Personality Inventory - standards
Schizophrenia - diagnosis - epidemiology
Schizophrenic Psychology
Sweden - epidemiology
Time Factors
Universities
Abstract
Personality is considered as an important aspect in persons with psychotic disorders. Several studies have investigated personality in schizophrenia. However, no study has investigated stability of personality traits exceeding three years in patients with schizophrenia. This study aims to investigate the stability of personality traits over a five-year period among patients with schizophrenia and non-psychotic individuals and to evaluate case-control differences.
Patients with psychotic disorders (n?=?36) and non-psychotic individuals (n?=?76) completed Swedish universities Scales of Personality (SSP) at two occasions five years apart. SSP scores were analysed for effect of time and case-control differences by multiple analysis of covariance (MANCOVA) and within-subjects correlation.
MANCOVA within-subjects analysis did not show any effect of time. Thus, SSP mean scale scores did not significantly vary during the five-year interval. Within subject correlations (Spearman) ranged 0.30-0.68 and 0.54-0.75 for the different SSP scales in patients and controls, respectively. Patients scored higher than controls in SSP scales Somatic Trait Anxiety, Psychic Trait Anxiety, Stress Susceptibility, Lack of Assertiveness, Detachment, Embitterment, and Mistrust.
The stability of the SSP personality trait was reasonably high among patients with psychotic disorder, although lower than among non-psychotic individuals, which is in accordance with previous research.
PubMed ID
29486736 View in PubMed
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