RheumRheumatology

ACR/EULAR Gout Classification Criteria 2015

Classifies gout in patients with ≥1 episode of peripheral joint/bursa swelling, pain, or tenderness. Requires ≥8 points to classify as gout (sensitivity 92%, specificity 89%).

Monosodium urate (MSU) crystals identified in synovial fluid or suspected tophus (definitive criterion)?

Synovial fluid analysis PERFORMED and NO MSU crystals found?

Affected joint/bursa site during symptomatic episode

Episode characteristics (erythema, can't bear touch/pressure, great difficulty walking/using joint)

Episode pattern

Serum urate (measured during attack-free period if possible)

Imaging showing urate deposition (dual-energy CT, ultrasound double-contour sign, or tophus on CT)?

X-ray showing gout-related erosion (NOT OA — cortical erosion with sclerotic margin)?

Reference: Neogi T et al. Ann Rheum Dis 2015

Medical Disclaimer: This calculator is a clinical decision support tool for qualified healthcare professionals. It does not replace clinical judgement. Always interpret results in the full clinical context. Reference: Neogi T et al. Ann Rheum Dis 2015.

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