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  • Title: Prevalence of DSM-IV personality disorders in patients with chronic fatigue syndrome: a controlled study.
    Author: Kempke S, Van Den Eede F, Schotte C, Claes S, Van Wambeke P, Van Houdenhove B, Luyten P.
    Journal: Int J Behav Med; 2013 Jun; 20(2):219-28. PubMed ID: 23065435.
    Abstract:
    BACKGROUND: It is not yet clear whether chronic fatigue syndrome (CFS) is associated with elevated levels of personality disorders. PURPOSE: This study aims to determine the prevalence of DSM-IV axis II personality disorders among patients with CFS. METHODS: We examined the prevalence of personality disorders in a sample of 92 female CFS patients and in two well-matched control groups, i.e., normal community individuals (N = 92) and psychiatric patients (N = 92). Participants completed the assessment of DSM-IV personality disorders questionnaire (ADP-IV), which yields a categorical and dimensional evaluation of personality disorder features. RESULTS: The prevalence of personality disorders in CFS patients (16.3 %) was significantly lower than in psychiatric patients (58.7 %) and was similar to that in the community sample (16.3 %). Similar results were found for dimensional and pseudodimensional scores, except for the Depressive (DE) and Obsessive-Compulsive Personality Disorder (O-C) subscales. Patients with CFS had significantly higher levels of DE features compared to normal controls and similar dimensional scores on the O-C scale compared to psychiatric controls. CONCLUSIONS: Although the CFS sample was characterized by depressive and obsessive-compulsive personality features, this study provides no evidence for the assumption that these patients generally show a higher prevalence of axis II pathology. Given the conflicting findings in this area, future studies using multiple measures to assess personality disorders in CFS are needed to substantiate these findings.
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