Prevalence of DSM-IV personality disorders in patients with chronic fatigue syndrome: a controlled study

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.

 

Source: Kempke S, Van Den Eede F, Schotte C, Claes S, Van Wambeke P, Van Houdenhove B, Luyten P. Prevalence of DSM-IV personality disorders in patients with chronic fatigue syndrome: a controlled study. Int J Behav Med. 2013 Jun;20(2):219-28. doi: 10.1007/s12529-012-9273-y. https://www.ncbi.nlm.nih.gov/pubmed/23065435

 

Chronic fatigue syndrome and DSM-IV personality disorders

Abstract:

OBJECTIVE: Personality is an important factor in the research of the chronic fatigue syndrome (CFS). Although some studies report a high rate of personality disorders–around the 40% level–in samples of patients with CFS, the generalizability of these findings can be questioned. The present study evaluates the prevalence of Diagnostic and Statistical Manual for Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR) personality disorders in a sample of female CFS patients and in two control groups.

METHOD: The ADP-IV questionnaire (Assessment of DSM Personality Disorders IV) was used to assess the DSM-IV-TR personality disorders at a dimensional and categorical level in a sample of 50 female CFS patients and in two matched control samples of Flemish civilians (n=50) and psychiatric patients (n=50).

RESULTS: The results indicate a striking lack of statistical significant differences between the CFS sample and the Flemish control group at the level of dimensional Trait scores, number of criteria, and prevalence rates of personality disorder diagnoses. Unsurprisingly, higher scores at these levels were obtained within the psychiatric sample. The prevalence of an Axis II disorder was 12% in the Flemish and CFS samples, whereas the psychiatric sample obtained a prevalence of 54%.

CONCLUSION: The prominent absence of any significant difference in personality disorder characteristics between the female Flemish general population and the CFS samples seems to suggest only a minor etiological role for personality pathology, as defined by the DSM-IV Axis II, within CFS.

 

Source: Courjaret J, Schotte CK, Wijnants H, Moorkens G, Cosyns P. Chronic fatigue syndrome and DSM-IV personality disorders. J Psychosom Res. 2009 Jan;66(1):13-20. doi: 10.1016/j.jpsychores.2008.07.001. Epub 2008 Nov 22. https://www.ncbi.nlm.nih.gov/pubmed/19073288

 

Objective assessment of personality disorder in chronic fatigue syndrome

Abstract:

OBJECTIVES: This study aims to objectively assess the prevalence and nature of personality disorders in depressed and nondepressed chronic fatigue syndrome (CFS) patients and compare this to depressed and healthy control groups.

METHODS: Sixty-one patients attending a tertiary referral clinic with chronic fatigue syndrome, 40 psychiatric inpatients with depressive disorder and 45 healthy medical students completed the Structured Clinical Interview for DSM-III-R Diagnoses (SCID-II) in addition to providing routine clinical and demographic information.

RESULTS: Thirty-nine percent of the CFS group, 73% of the depressed group and 4% of the healthy group were diagnosed with personality disorders. Cluster C disorders were the most common in both the CFS and depressed group. The depressed CFS patients had more Cluster B personality disorders than nondepressed CFS patients. Overall for CFS patients there was no association between mood state and personality disorder.

CONCLUSIONS: High levels of personality disorder are found on objective assessment of CFS patients attending a teaching hospital clinic. This cannot be accounted for by comorbid depression.

 

Source: Henderson M, Tannock C. Objective assessment of personality disorder in chronic fatigue syndrome. J Psychosom Res. 2004 Feb;56(2):251-4. http://www.ncbi.nlm.nih.gov/pubmed/15016586

 

Psychiatric morbidity in the chronic fatigue syndrome: are patients with personality disorder more physically impaired?

Abstract:

OBJECTIVE: The long-term consequences of chronic fatigue syndrome (CFS) include substantial impairment in physical functioning and high levels of work disability. In the absence of a medical explanation for this impairment, some have speculated that it may be due to comorbid psychiatric illness or personality disorder. We addressed this possibility by comparing the functional status of three CFS groups: no psychiatric diagnosis, psychiatric illness only, psychiatric illness and personality disorder. A second aim of the study was to determine whether a continuous measure of psychological distress could provide a better account of impairment than psychiatric diagnosis.

METHOD: The study sample consisted of 84 consecutive female referrals with CFS. All participants satisfied the case definition and completed an assessment protocol consisting of: physical examination, psychiatric interview and self-report questionnaires.

RESULTS: Psychiatric illness, either alone or in combination with a comorbid personality disorder, was not associated with physical impairment or disability in female participants. A regression model of physical functioning found that psychological distress accounted for 6% and symptom severity for 41% of the variance (P=.06 and <.01, respectively). In the case of disability, the corresponding percentages were 2% and 18% (NS and P<.01, respectively). The modest effects of psychological distress could not be attributed to symptom severity.

CONCLUSIONS: Although psychiatric illness and personality disorder was prevalent, neither could explain the effects of CFS on physical functioning and disability. As yet, there is no psychological or medical explanation for the behavioral consequences of CFS.

 

Source: Ciccone DS, Busichio K, Vickroy M, Natelson BH. Psychiatric morbidity in the chronic fatigue syndrome: are patients with personality disorder more physically impaired? J Psychosom Res. 2003 May;54(5):445-52. http://www.ncbi.nlm.nih.gov/pubmed/12726901

 

Personality in adolescents with chronic fatigue syndrome

Abstract:

Our aim was to study the presence of personality traits and disorder in adolescents with Chronic Fatigue Syndrome (CFS). Personality was then compared to other measures of functioning such as presence of psychiatric disorder and rating on the Child Behavior Checklist 4-18 (CBCL) and in relation to CFS outcome.

Twenty-five adolescents with CFS followed-up after contacts with tertiary paediatric/psychiatric clinics were compared with 15 matched healthy controls. Interviews and questionnaires from parents and youngsters included Personality Assessment Schedule (PAS), Kiddie-SADS Psychiatric Interview, Child Behavior Checklist. CFS subjects were significantly more likely than controls to have personality difficulty or disorder.

Personality features significantly more common amongst them were conscientiousness, vulnerability, worthlessness and emotional lability. There was a nonsignificant association between personality disorder and worse CFS outcome. Personality difficulty or disorder was significantly associated with psychological symptoms and decreased social competence on the CBCL but it was distinguishable from episodic psychiatric disorder. Personality difficulty and disorder are increased in adolescents with a history of CFS. Personality disorder may be linked to poor CFS outcome.

 

Source: Rangel L, Garralda E, Levin M, Roberts H. Personality in adolescents with chronic fatigue syndrome. Eur Child Adolesc Psychiatry. 2000 Mar;9(1):39-45. http://www.ncbi.nlm.nih.gov/pubmed/10795854

 

Personality dimensions in the chronic fatigue syndrome: a comparison with multiple sclerosis and depression

Abstract:

This study investigated the relative rates of personality disturbance in chronic fatigue syndrome (CFS). Individuals who met the CDC criteria for CFS were compared to two other fatiguing illness groups, mild multiple sclerosis and depression, as well as sedentary healthy controls.

Subjects were administered a structured psychiatric interview to determine Axis I psychiatric disorders and two self-report instruments to assess Axis II personality disorders and the personality trait of neuroticism.

The depressed group had significantly more personality disorders and elevated neuroticism scores compared with the other three groups. The CFS and MS subjects had intermediary personality scores which were significantly higher than healthy controls.

The CFS group with concurrent depressive disorder (34% of the CFS group) was found to account for most of the personality pathology in the CFS sample. The results are discussed in the context of the relationship between personality variables and fatiguing illness.

 

Source: Johnson SK, DeLuca J, Natelson BH. Personality dimensions in the chronic fatigue syndrome: a comparison with multiple sclerosis and depression. J Psychiatr Res. 1996 Jan-Feb;30(1):9-20. http://www.ncbi.nlm.nih.gov/pubmed/8736462

 

A comparison of neuropsychiatric characteristics in chronic fatigue syndrome, multiple sclerosis, and major depression

Abstract:

Chronic fatigue syndrome (CFS), a controversial clinical entity characterized by severe fatigue and constitutional symptoms, has been associated with a variety of psychiatric disorders. To further understand the psychiatric profile of CFS, the authors compared patients with CFS, multiple sclerosis (MS), and major depression by using diagnostic interviews and self-report measures of Axis I disorders and personality disorders. CFS patients differed from patients with major depression, with significantly less depression and fewer personality disorders. Compared with MS patients, CFS patients did not differ with regard to personality disorders. However, they did have significantly more frequent current depression than MS patients, particularly following onset of their illness.

 

Source: Pepper CM, Krupp LB, Friedberg F, Doscher C, Coyle PK. A comparison of neuropsychiatric characteristics in chronic fatigue syndrome, multiple sclerosis, and major depression. J Neuropsychiatry Clin Neurosci. 1993 Spring;5(2):200-5. http://www.ncbi.nlm.nih.gov/pubmed/8508039