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Prevalence of Type D Personality and Factorial and Temporal Stability of the DS14 after Myocardial Infarction in a Swedish Population
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.ORCID iD: 0000-0003-3691-8326
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
2014 (English)In: Scandinavian Journal of Psychology, ISSN 0036-5564, E-ISSN 1467-9450, Vol. 55, no 6, 601-610 p.Article in journal (Refereed) Published
Abstract [en]

This study examined the prevalence of Type D personality and the temporal stability, internal consistency, and construct validity of the DS14 at three time points after myocardial infarction. The prevalence of Type D personality was 14.0% during hospitalization, 25.1% at 1 month, and 19.2% at 12 months. A total of 6.1% of patients were classified as Type D personality at all three assessments, whereas 68.4% were stable non-Type D and 25.6% changed between personality classifications. The DS14 had stable structural validity, but low temporal stability over time, especially from hospitalization to the 1-month and 12-month follow-ups (k = 0.365 and 0.397, respectively).

Place, publisher, year, edition, pages
2014. Vol. 55, no 6, 601-610 p.
National Category
Psychiatry
Identifiers
URN: urn:nbn:se:uu:diva-232467DOI: 10.1111/sjop.12162ISI: 000345219900012PubMedID: 25243796OAI: oai:DiVA.org:uu-232467DiVA: diva2:748521
Available from: 2014-09-19 Created: 2014-09-18 Last updated: 2017-12-05Bibliographically approved
In thesis
1. Type D Personality: Psychometric Properties of the DS14 and Associations with Ill Health and Coronary Heart Disease in General and Clinical Populations
Open this publication in new window or tab >>Type D Personality: Psychometric Properties of the DS14 and Associations with Ill Health and Coronary Heart Disease in General and Clinical Populations
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Type D personality, or distressed personality, refers to the joint tendency to experience negative emotions and to inhibit self-expression in social interactions. The overall aims of this thesis were to examine the impact of Type D personality on adolescents’ self-perceived health, to examine the factorial and temporal stability of the Type D personality construct DS14, and to clarify whether type D personality is an independent risk factor for recurrent myocardial infarction and all-cause mortality among patients with myocardial infarction.

The prevalence of Type D personality in the adolescent population was 10.4% for boys and 14.6% for girls. Boys and girls with Type D personality were approximately twice as likely to report musculoskeletal pain and five times as likely to report psychosomatic symptoms.

Adolescents with Type D personality were four times more likely to have sleep disturbances and to sleep fewer hours, especially on school nights.

Among patients with myocardial infarction, the Swedish DS14 had stable structural validity. Our measurements confirmed the two-factor model of the DS14. However, the DS14 exhibited low temporal stability, especially when comparing the measurement obtained during hospitalization with the 1- and 12-month follow-up measurements.

Among patients with myocardial infarction, the Framingham risk score had a strong predictive value for recurrent myocardial infarction, and a somewhat weaker predictive value for all-cause mortality. However, none of the previously proposed methods for the analysis of the DS14 Type D personality measurement predicted recurrent myocardial infarction or all-cause mortality, either in univariable analyses or in addition to the Framingham risk score.

In conclusion, the present thesis found significant associations between the DS14 and psychosomatic symptoms in adolescents. However, the measurement exhibited a low stability over time and no predictive value for recurrent myocardial infarction and mortality among patients with myocardial infarction. Taken together, these results raise the question of whether the Swedish DS14 really is a measure of personality. An alternative explanation for the strong cross-sectional associations observed between the DS14 and psychosomatic symptoms might be that the DS14 functions as a pseudo-measure of ill health, or co-varies with depressive or psychosomatic characteristics.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2014. 74 p.
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 1034
Keyword
adolescence, ill health, mortality, myocardial infarction, sleep, stability, Type D personality
National Category
Neurosciences
Research subject
Psychiatry
Identifiers
urn:nbn:se:uu:diva-233041 (URN)978-91-554-9052-2 (ISBN)
Public defence
2014-11-14, Aulan, Ingång 21, Västmanlands sjukhus, Västerås, 13:15 (Swedish)
Opponent
Supervisors
Available from: 2014-10-23 Created: 2014-09-29 Last updated: 2015-01-23Bibliographically approved

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Condén, EmelieRosenblad, AndreasEkselius, LisaÅslund, Cecilia

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