Table 2 Prevalence of borderline personality disorder in patients diagnosed with chronic fatigue syndrome
AuthorsCountry of studyYear publishedParticipants with CFS (n)Study
setting/design
Diagnostic criteriaGender distributionAgePrevalence of BPD (%)
Johnson et al 24USA199635Out-patient/case–controlCDC-CFS*
PDQ-R
88.6% female34.8
(s.e.m.=1.3)
17
Courjaret et al 25 Belgium200950Out-patient/case–controlCDC-CFS*
ADP-IV**
100% female37.1
(s.d.=7.9)
2
Nater et al 26 USA2010113Community/surveyCDC-CFS*
PDQ-4
81.4% female44.31.8
Kempke et al 27 Belgium201292Out-patient/case–controlCDC-CFS*
ADP-IV**
100% female42.2
(s.d.=9.0)
6.50
Calvo et al 28 Spain2015132Hospital/cross-sectionalCDC-CFS*
PDQ-4
91.7% female47.7
(s.d.=9.1)
3.03
  • * Centers for Disease Control chronic fatigue syndrome criteria

  • ** Assessment of DSM-IV Personality Disorders Questionnaire

  • Personality Diagnostic Questionnaire–Revised

  • Personality Diagnostic Questionnaire 4th edition.