• Antoni Castel, María José Poveda, Samantha Rodríguez-Muguruza, Sonia Castro, and Ramon Fontova.
• Unidad de dolor, Hospital Universitari de Tarragona JoanXXIII. Tarragona, España; Multidimentional Pain Research Group, Institut d'Investigació Sanitària Pere Virgili, Reus, Tarragona, España. Electronic address: antonicastel.hj23.ics@gencat.cat.
• Med Clin (Barc). 2023 Jan 20; 160 (2): 606560-65.

Background And ObjectiveFibromyalgia patients often report that certain seasons aggravate their symptoms. The main objective was to determinate the association between key symptoms of fibromyalgia and the season of the year. A secondary objective was to determinate the existence of differences based on levels of anxiety or depression.Material And MethodConvenience sample made up of 471 participants with fibromyalgia evaluated before starting multidisciplinary treatment. Demographic and meteorological data were collected. Clinical data were assessed with standardized instruments of pain intensity, functionality, fatigue, stiffness, sleep quality, anxiety and depression.ResultsThe different groups of participants were homogeneous for age, gender, educational level, marital status and employment situation. No significant differences were found in pain intensity (F=1.334; P=.265), functionality (F=.402; P=.669), fatigue (F=.714; P=.490), stiffness (F=.299; P=.741), anxiety (F=.376; P=.687), depression (F=.608; P=.545), psychological distress (F=.261; P=.770), sleep quantity (F=1.507; P=.223) or sleep disturbances (F=.343; P=.710).ConclusionsNo differences were found in the intensity of fibromyalgia symptoms, nor in the percentages of severity among the different seasons of the year. Anxiety was more prevalent than depression, possibly due to the characteristics of the sample itself, with the majority of patients with a dysfunctional profile.Copyright © 2022 Elsevier España, S.L.U. All rights reserved.

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