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Predictive factors for somatization in a trauma sample.

Ask Elklit1, Dorte M Christiansen1

  • 1Department of Psychology, University of Aarhus, Aarhus, Denmark.

Clinical Practice and Epidemiology in Mental Health : CP & EMH
|January 8, 2009
PubMed
Summary
This summary is machine-generated.

Trauma survivors with negative affectivity and feelings of incompetence are more likely to experience unexplained somatic symptoms. Posttraumatic stress disorder (PTSD) risk for somatization is mediated by negative affectivity.

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Area of Science:

  • Psychiatry
  • Psychology
  • Trauma Studies

Background:

  • Unexplained somatic symptoms are prevalent in trauma survivors.
  • Posttraumatic stress disorder (PTSD) is a known mediator between trauma and somatization.
  • Limited research exists on other psychological risk factors for somatoform symptoms in trauma victims.

Purpose of the Study:

  • To investigate psychological risk factors predicting somatization in trauma survivors.
  • To examine the roles of PTSD severity, dissociation, negative affectivity, depression, anxiety, and feelings of incompetence.

Main Methods:

  • A Danish sample of 169 adult men and women exposed to a firework factory explosion was studied.
  • Predictive value of psychological factors on somatization was assessed.
  • Statistical analyses were used to determine significant predictors.

Main Results:

  • Negative affectivity and feelings of incompetence significantly predicted somatization, accounting for 42% of the variance.
  • Posttraumatic stress disorder (PTSD) was a significant predictor until negative affectivity was controlled.
  • Dissociation, depression, and anxiety were not significantly associated with somatization levels.

Conclusions:

  • Negative affectivity and feelings of incompetence are significant predictors of somatization in trauma survivors.
  • The influence of PTSD on somatization is mediated by negative affectivity.
  • Dissociation, depression, and anxiety do not appear to be direct risk factors for somatization in this trauma sample.