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Revista Colombiana de Reumatología
Print version ISSN 0121-8123
Abstract
BECERRA-GARCIA, Juan Antonio and ROBLES, Manuel Javier. Subgroups of patients with fibromyalgia according to Gray's personality model: study on psychological characteristics. Rev.Colomb.Reumatol. [online]. 2015, vol.22, n.1, pp.4-10. ISSN 0121-8123. https://doi.org/10.1016/j.rcreu.2015.01.004.
Introduction and objective: In fibromyalgia (FM), subgroups of patients have been classified according to clinical-biological variables, with personality measures not commonly being used for this classification. In this study, the objective was to determine whether Gray's personality model (measurement of sensitivity to punishment [SP] and reward [SR]) is useful to psychologically differentiate patients with FM. Materials and methods: Twenty participants with FM completed measurements of personality (SP-SR), affectivity, anxiety-depression, optimism, self-esteem, alexithymia and coping styles. The relationship between SP-SR and the other measurements was explored, as well as determining if participants differed in psychological variables examined, by level of SP and/or SR. Results: The SP score was associated with a greater number of measurements. Only the SP level was able to differentiate the two groups of participants, FM group with high SP (n = 13; 65%) and FM group with low SP (n = 7; 35%) that significantly differed in several psychological measurements assessed: positive affect, depression, type of coping strategies used, self-esteem and alexithymia. Conclusions: In the model, the SP score seems to have relevance in FM (at least preliminarily) in identifying patients who differ in their psychological functioning. Although the model appears to be useful to determine psychic heterogeneity in FM, are needed future investigations that can extend the results.
Keywords : Fibromyalgia; Patients; Personality; Psychology.