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. 2017 Dec 22;3(2):e000573. doi: 10.1136/rmdopen-2017-000573

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© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

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Outcome according to final clinical diagnosis. DMARD, disease-modifying antirheumatic drug; PsA, psoriatic arthritis; RA, rheumatoid arthritis; ReA, reactive arthritis; SpA, spondyloarthritis; UA, undifferentiated arthritis.