are needed to replicate the results. All participants in this study had to have a spouse who was willing to participate. Turk et al. [13] reported that almost 40% of patients with FMS indicated high levels of interpersonal distress. The generalisability of the results of this study to unmarried FMS patients and patients with poor interpersonal relations also needs to be confirmed. Conclusion Despite the limitations noted, it appears that psychologically based treatments are capable of producing both statistically significant and clinically meaningful benefits for patients with long-standing FMS, without the specific inclusion of a structured physical therapy plan or antidepressant medications. Importantly, the results demonstrated that the changes were maintained up to 12 months after treatment. Moreover, there were significant reductions in physician visits, primarily for the OBT treatment, that would result in substantial cost savings in response to FMS therapy. Although promising, these treatments are geared toward FMS symptoms such as pain, physical impairment, and affective distress but probably do not address causal factors of the disorder, which are still unknown. Psychopathology as a Moderator of the Relationship Between Physical Symptoms and Impairment in Fibromyalgia Patients M. Pilar Martínez1 , Ana I. Sánchez1 , Rafael Cáliz2 , and Elena Miró1 1 University of Granada and 2 Virgen de las Nieves University Hospital, Granada Abstract Resumen Background: Fibromyalgia (FM) is a chronic pain syndrome that is accompanied by notable psychological distress. However, little research has been done on how the psychopathological profi le of FM patients may infl uence their functional status. Method: Using the Symptom Checklist90-Revised the study examined the psychopathological dimensions of 181 women with FM, and the role of psychopathology as a moderator of the relationship between physical symptoms and impairment of functioning. Results: FM patients exhibited T-scores above the cutoff point (≥ 60) in all dimensions, and 76.2% were identifi ed as “clinical cases”. Somatization was a signifi cant predictor of pain intensity, somatization and obsessioncompulsion contributed signifi cantly to predicting poor sleep quality, while somatization, depression and anxiety were signifi cant predictors of impairment. Psychopathology was a statistically signifi cant moderator that increased the impact of poor sleep quality on impairment. Conclusions: The dysfunctional psychological style is key in the impairment associated with FM. The evaluation of psychopathological profi les can allow the early identifi cation of the patients who are most vulnerable to impaired functioning due to the presence of possible psychopathology, as well facilitating therapeutic adaptations. Keywords: Fibromyalgia, psychopathology, moderator, pain, sleep, impairment. Psicopatología Como Moderador de la Relación Entre Síntomas Físicos y Discapacidad en Pacientes con Fibromialgia. Antecedentes: la fi bromialgia (FM) es un síndrome de dolor crónico que se acompaña de importante malestar psicológico. Sin embargo, se ha investigado poco cómo el perfi l psicopatológico de los pacientes con FM puede infl uir en su estado funcional. Método: utilizando el Cuestionario de Síntomas-90- Revisado, se examinaron las dimensiones psicopatológicas de 181 mujeres con FM, y el papel de la psicopatología como moderador de la relación entre síntomas físicos y deterioro del funcionamiento. Resultados: las pacientes presentaron puntuaciones-T superiores al punto de corte (≥ 60) en todas las dimensiones, siendo el 76,2% de ellas identifi cadas como “caso clínico”. La somatización fue un predictor signifi cativo de la intensidad dolor, la somatización y la obsesión-compulsión contribuyeron signifi cativamente a predecir la mala calidad del sueño, y la somatización, la depresión y la ansiedad fueron predictores signifi cativos del deterioro. La psicopatología fue un moderador estadísticamente signifi cativo que intensifi có el impacto de la mala calidad del sueño sobre el deterioro. Conclusiones: el estilo psicológico disfuncional es clave en el deterioro asociado a la FM. La