Fibromyalgia & musculoskeletal pain
The measurement of fibromyalgia severity: converting scores between the Fibromyalgia Impact Questionnaire (FIQR), the PSD and the FASmod
Authors' conclusion
Conversion equations that allow for interconversion of multiple scales fibromyalgia severity assessment scales are produced. These can be useful in obtaining mean values for cohorts but are not accurate enough for use in individual patients.
Study context
- Population
- Patients with FM diagnosed by American College of Rheumatology (ACR) 2010/2011 criteria, Italian Fibromyalgia Registry
- Participants
- 3,089 patients
- Outcome
- Equations converting FIQR scores to PSD and FASmod
Methodological detailsregistry-based, Pearson correlation, least square regression
- Registry-based
- Pearson correlation
- Least square regression
Main finding
As reported in the abstract
Correlations between severity indices
FIQR vs PSD correlation (r)
0.714
FIQR vs FASmod correlation (r)
0.801
PSD vs FASmod correlation (r), the highest
0.897
Observational data: associations, not effects.
Original publication
The measurement of fibromyalgia severity: converting scores between the FIQR, the PSD and the FASmod. Clin Exp Rheumatol. Published 25 March 2022. doi:10.
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