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Name the 5 criteria for enthesitis-related arthropathy (ERA)
What is 1) History or presence of sacroiliac joint tenderness and/or inflammatory lumbosacral pain, 2) Presence of HLA-B27, 3) onset of arthritis in a male greater than 6 years of age, 4) acute symptomatic uveitis, 5) a 1st degree relative with ankylosing spondylitis, ERA, sacroiliitis with IBD, reactive arthritis or acute anterior uveitis.
The definition of ERA is arthritis + enthesitis OR arthritis or enthesitis, plus 2 pf the above criteria.