Comparison of the Big Five personality traits in fibromyalgia and other rheumatic diseases.
BACKGROUND
The personality of patients with fibromyalgia is still under debate. Some studies found high neuroticism associated with low extraversion, while others found that these traits do not differ from the normal population. Personality factors intervene in the emotional regulation and modulation of pain. The aim of the study was to determine the personality traits of patients with fibromyalgia compared to other rheumatic diseases.


METHODS
In a multicentric study, women with fibromyalgia, rheumatoid arthritis, spondyloarthritis or Sjögren's syndrome were asked to complete the Big Five Inventory, which encompasses five main personality dimensions, namely (1) extraversion vs. introversion, (2) agreeableness vs. antagonism, (3) conscientiousness vs. impulsivity, (4) neuroticism vs. emotional stability, and (5) openness vs. closed-mindedness. Variance analysis (Student's t-test and ANOVA with post-hoc comparisons or Bonferroni correction) was performed. We also conducted hierarchical and non-hierarchical cluster analyses.


CONCLUSIONS
Participants were 163 women with fibromyalgia (n=48), rheumatoid arthritis (n=46), spondyloarthritis (n=46) and Sjögren's syndrome (n=23). The mean age was 47.18years (±10.81years, range 21 to 65). Patients with fibromyalgia had higher scores on agreeableness (F(3, 159)=3.39, P<0.05), neuroticism (F(3, 159)=3.79, P<0.05) and openness (F(3, 159)=4.32, P<0.01) than those with other rheumatic diseases. This study highlights the specificity of personality in fibromyalgia. It also underlines the protective role of personality traits: in the fibromyalgia group, high neuroticism and low conscientiousness (high impulsivity) were associated with a high level of chronic pain.
EA 2114 « Psychologie des âges de la vie et adaptation », département de psychologie, université François-Rabelais de Tours, 3, rue des Tanneurs, BP 4103, 37041 Tours cedex 1, France.
Emilie
E
Bucourt
Service de rhumatologie, université François-Rabelais de Tours, CHRU de Tours, 37044 Tours cedex 09, France.
Virginie
V
Martaillé
Service de rhumatologie, université François-Rabelais de Tours, CHRU de Tours, 37044 Tours cedex 09, France.
Denis
D
Mulleman
Service de rhumatologie, université François-Rabelais de Tours, CHRU de Tours, 37044 Tours cedex 09, France.
Philippe
P
Goupille
Centre d'Étude et de traitement de la douleur (CETD), CHRU de Tours, 37044 Tours cedex 09, France.
Isabelle
I
Joncker-Vannier
Service de chirurgie maxillo-faciale, plastique de la face et stomatologie, université François-Rabelais de Tours, CHRU de Tours, 37041 Tours cedex, France.
Brigitte
B
Huttenberger
EA 2114 « Psychologie des âges de la vie et adaptation », département de psychologie, université François-Rabelais de Tours, 3, rue des Tanneurs, BP 4103, 37041 Tours cedex 1, France.
Christian
C
Reveillere
EA 2114 « Psychologie des âges de la vie et adaptation », département de psychologie, université François-Rabelais de Tours, 3, rue des Tanneurs, BP 4103, 37041 Tours cedex 1, France; Clinique psychiatrique universitaire, CHRU de Tours, 37044 Tours cedex 09, France. Electronic address: robert.courtois@univ-tours.fr.
Robert
R
Courtois
D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000523:psychology*; D005260:Female; D005356:Fibromyalgia / Q000523:psychology*; D006801:Humans; D008875:Middle Aged; D010146:Pain / Q000523:psychology*; D010551:Personality; D010555:Personality Inventory; D012859:Sjogren's Syndrome / Q000523:psychology*; D025241:Spondylarthritis / Q000523:psychology*; D055815:Young Adult
Big Five Inventory; Fibromyalgia; Five-factor personality model; Rheumatoid arthritis; Sjögren's syndrome; Spondyloarthritis