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. 2021 Feb 9:12:623183.
doi: 10.3389/fpsyg.2021.623183. eCollection 2021.

The Reliability and Agreement of the Fibromyalgia Survey Questionnaire in an Italian Sample of Obese Patients

Giorgia Varallo  1   2 , Ada Ghiggia  1   3 , Marco Arreghini  4 , Paolo Capodaglio  4 , Gian Mauro Manzoni  1   5 , Emanuele Maria Giusti  1   2 , Lorys Castelli  2 , Gianluca Castelnuovo  1   2
Affiliations

The Reliability and Agreement of the Fibromyalgia Survey Questionnaire in an Italian Sample of Obese Patients

Giorgia Varallo et al. Front Psychol. .

Abstract

The Fibromyalgia Survey Questionnaire (FSQ) was self-administered by a sample of 207 Italian individuals with obesity to screen for fibromyalgia (FM). We aimed to investigate the inter-rater reliability and the agreement in the detection of FM symptomatology between the self-administered FSQ and the clinical interview conducted by a rheumatologist. All the patients were divided randomly into two groups (group A and group B): a rheumatologist first interviewed patients of group A and after 48 h, the patients completed the self-report FSQ. Patients of group B first completed the FSQ and 48 h later were interviewed by a rheumatologist. The agreement between the measurements was good with the Bland-Altman analysis showing low bias scores for the two subscales of the FSQ. Results showed that 33% of the sample satisfied the criteria for a diagnosis of fibromyalgia. The FSQ is a self-reporting measure that showed substantial reliability providing fast screening for FM symptomatology.

Keywords: assessment; chronic pain; fibromyalgia (FM); fibromyalgia survey questionnaire; obesity; reliabiity.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

Figure 1
Figure 1
Bland-Altman 95% limits of agreement plot for PSD.
See this image and copyright information in PMC

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