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. 2023 Oct 18;13:17739. doi: 10.1038/s41598-023-44389-9

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Study population of b/tsDMARD-treated rheumatoid arthritis patients in DATASUS with cohorts defined by their dependency on Brazil´s public health system (Sistema Único de Saúde), either exclusively (SUS_exclusive) or in combination with private insurance coverage (SUS+ private) (STROBE diagram). RA rheumatoid arthritis, DMARD disease modifying antirheumatic drug, N total number of patients, SUS Sistema Único de Saúde, SUS-exclusive comprehensive public health system for the entire population, SUS+ private refers to individuals on SUS only for prescription drug coverage.