2016 Fibromyalgia Diagnostic Criteria Calculator

Overview

Assesses the 2016 fibromyalgia criteria using widespread pain, symptom severity and generalised pain.

Clinical Significance

Criteria are met when generalised pain is present in at least 4 of 5 regions, symptoms persist for at least 3 months, and the WPI/SSS combination reaches the specified threshold.

When to Use

• Use as structured clinical decision support when the required data are available and reliable.

How It Is Calculated

• The displayed variables are combined using the published equation or weighted point system.

Interpretation

• Criteria are met when generalised pain is present in at least 4 of 5 regions, symptoms persist for at least 3 months, and the WPI/SSS combination reaches the specified threshold.

Worked Example

Enter verified patient data in the displayed units; MedicalC applies the published equation or point system.

Limitations

• Classification and prognostic tools can be misapplied outside their validated population.
• Missing, estimated or non-contemporaneous data may materially change the result.

Clinical Pearls

• Document the input values, units, date and clinical setting with the result.
• Use serial scores only when the same instrument and measurement method are used consistently.

Common Mistakes

• Using the tool without confirming entry criteria.
• Selecting overlapping findings that should be represented by the highest-scoring item only.
• Treating a classification threshold as a standalone diagnosis.

References

1. Wolfe F et al. Semin Arthritis Rheum. 2016;46:319-329. — Primary or supporting reference for the implemented model.