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Psychometric properties of the Type D scale (DS14) in Norwegian cardiac patients

Svein Bergvik1, Tore Sørlie, Rolf Wynn

  • 1Department of Clinical Medicine, University of Tromsø, University Hospital of Northern Norway, Tromsø, Norway. svein.bergvik@unn.no

Scandinavian Journal of Psychology
|January 28, 2010
PubMed

Insights

Type D Personality, characterized by negative affectivity and social inhibition, is linked to adverse outcomes in coronary artery disease patients. A validated Norwegian DS14 scale confirmed its psychometric properties in this population.

Area of Science:

  • Psychology
  • Cardiology
  • Health Psychology

Background:

  • Type D Personality, a construct combining negative affectivity (NA) and social inhibition (SI), is associated with adverse health outcomes, particularly in coronary artery disease (CAD).
  • Understanding the prevalence and correlates of Type D Personality in diverse patient populations is crucial for targeted interventions.

Purpose of the Study:

  • To validate a Norwegian translation of the DS14, the standard instrument for measuring Type D Personality.
  • To investigate the psychometric properties of the Norwegian DS14 in patients with CAD undergoing coronary revascularization.
  • To examine the prevalence and psychological correlates of Type D Personality in this cohort.

Main Methods:

  • A Norwegian version of the DS14 was administered to 432 CAD patients post-coronary revascularization.
  • Factor analysis was employed to assess the psychometric properties and inter-item reliability of the Norwegian DS14.
  • Statistical analyses were conducted to determine the prevalence of Type D Personality and its associations with psychological variables and demographics.

Main Results:

  • The Norwegian DS14 demonstrated acceptable psychometric properties with high inter-item reliability.
  • Eighteen percent of CAD patients were classified as Type D Personality, a lower prevalence than reported in some other studies.
  • Type D Personality was significantly associated with higher levels of anxiety, depression, and passive coping strategies. Negative affectivity correlated with depression and anxiety, while social inhibition correlated with depression, anxiety, and lower active coping.

Conclusions:

  • The Norwegian DS14 is a valid and reliable instrument for assessing Type D Personality in Norwegian CAD patients.
  • Type D Personality is prevalent in CAD patients and is linked to significant psychological distress and maladaptive coping mechanisms.
  • Further research is needed to understand variations in Type D prevalence across studies and the predictive value of continuous Type D scores.

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