Rheumatology medical calculators
All 13 Rheumatology medical calculators on DocMath, A–Z. All specialties
- ACR/EULAR 2010 rheumatoid arthritis classification criteriaClassifies "definite RA" (score ≥6/10) in a patient with at least one swollen joint not better explained by another disease. Erosions typical of RA also classify as RA without scoring. Classification criteria, not diagnostic criteria.
- ACR/EULAR 2015 gout classification criteriaClassifies gout (≥8 points) in a patient with at least one episode of peripheral joint or bursa swelling, pain or tenderness. MSU crystals in a symptomatic joint, bursa or tophus are sufficient on their own. Classification criteria, not diagnostic criteria.
- ACR/EULAR 2016 classification criteria for primary Sjögren’s syndromeClassifies primary Sjögren’s syndrome (score ≥4) in a patient with dryness symptoms or suspected systemic Sjögren’s, using five weighted objective items. Classification criteria for studies, not diagnostic criteria.
- ACR/EULAR 2022 classification criteria for eosinophilic granulomatosis with polyangiitis (EGPA)Classifies eosinophilic granulomatosis with polyangiitis (score ≥6) in a patient diagnosed with small- or medium-vessel vasculitis, after vasculitis mimics are excluded. Classification criteria for research, not diagnostic criteria.
- ACR/EULAR 2022 classification criteria for giant cell arteritisClassifies giant cell arteritis (score ≥6) in a patient aged ≥50 at diagnosis, once a diagnosis of large- or medium-vessel vasculitis has been made and vasculitis mimics excluded. Classification criteria for research, not diagnostic criteria.
- ACR/EULAR 2022 classification criteria for granulomatosis with polyangiitis (GPA)Classifies granulomatosis with polyangiitis (score ≥5) in a patient diagnosed with small- or medium-vessel vasculitis, after vasculitis mimics are excluded. Classification criteria for research, not diagnostic criteria.
- ACR/EULAR 2022 classification criteria for microscopic polyangiitis (MPA)Classifies microscopic polyangiitis (score ≥5) in a patient diagnosed with small- or medium-vessel vasculitis, after vasculitis mimics are excluded. Classification criteria for research, not diagnostic criteria.
- ASDAS-CRP (axial spondyloarthritis disease activity)Ankylosing Spondylitis Disease Activity Score with CRP for axial spondyloarthritis; ASAS cut-offs 1.3, 2.1 and 3.5 (2018 ASAS names: inactive, low, high and very high disease activity).
- CDAI — Clinical Disease Activity Index (rheumatoid arthritis)Rheumatoid arthritis disease activity without a laboratory test: 28-joint tender and swollen counts plus patient and evaluator global assessments.
- EULAR/ACR 2012 provisional classification criteria for polymyalgia rheumaticaClassifies polymyalgia rheumatica in a patient aged ≥50 with new bilateral shoulder aching and raised CRP and/or ESR: score ≥4 without ultrasound, or ≥5 with the optional ultrasound items. Classification criteria, not diagnostic criteria.
- EULAR/ACR 2019 systemic lupus erythematosus classification criteriaWeighted SLE classification: ANA ≥1:80 (ever) as entry, then ≥10 points with at least one clinical criterion. Count a criterion only if SLE is the most likely explanation. Classification criteria, not diagnostic criteria.
- SDAI — Simplified Disease Activity Index (rheumatoid arthritis)Rheumatoid arthritis disease activity: 28-joint tender and swollen counts, patient and evaluator global assessments and CRP. SDAI ≤3.3 is the ACR/EULAR index-based remission definition.
- SLEDAI-2K (SLE Disease Activity Index 2000)Weighted score of 24 lupus activity descriptors present at the visit or in the preceding 10 days (0–105).