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. 2022 Oct 24;82(1):74–80. doi: 10.1136/ard-2022-223413

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© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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Rates of rheumatoid arthritis (RA) disease remission according to modified Boolean classifications, using a patient global assessment (PtGA) threshold of 1.0 (‘Boolean’), 1.5, 2.0, 2.5 or omitting the PtGA completely (BooleanX), as well as according to the Simplified Disease Activity Index (SDAI), Clinical Disease Activity Index (CDAI) and Disease Activity Score in 28 joints (DAS28) definitions. Rates at 6 months are shown for patients with early RA and those with established RA.