EULAR classification criteria for hand osteoarthritis
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Entry criteria
Pain, aching, and/or stiffness in at least one target joint bilateral second-fifth distal interphalangeal, second-fifth proximal interphalangeal, first interphalangeal, and thumb base joints) on most days of the previous 6 weeks, and no other disease or acute injury that can explain the symptoms
No pain, aching, and/or stiffness in target joints
Age
< 45 years
45-54 years
55-64 years
≥ 65 years
Duration of morning stiffness in distal interphalangeal, proximal interphalangeal, first interphalangeal, and thumb base joints
None
Short ≤ 30 minutes)
Long > 30 minutes)
Number of distal interphalangeal, proximal interphalangeal, first interphalangeal, and first carpometacarpal joints with osteophytes
None
1-2 joints
3-5 joints
≥ 6 joints
Number of distal interphalangeal, proximal interphalangeal, first interphalangeal, and first carpometacarpal joints with joint space narrowing
None
1-2 joints
3-5 joints
≥ 6 joints
Symptom-structure concordance (radiographic osteoarthritis in at least 50% of the joints where the patient has experienced pain, aching, and/or stiffness on most days of the previous 6 weeks)
No
Yes
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