SAT0385 Similarities and differences between patients fulfilling non-radiographic axial spondyloarthritis and undifferentiated spondyloarthritis criteria: results from the esperanza cohort
Abstract:BackgroundPatients with spondyloarthritis (SpA) were classified in five subgroups: ankylosing spondylitis (AS), psoriatic arthritis, arthritis associated with inflammatory bowel disease, reactive arthritis and undifferentiated SpA (uSpA). ASAS criteria classify patients in peripheral SpA and axial SpA (axSpA), being the latest classified in two groups: classical AS and non-radiographic axSpA (nr-axSpa). Whether or not patients with nr-axSpA represent the same group of patients that used to be classified as uSp… Show more
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