COVID-19 was not associated or trigger disease activity in spondylarthritis patients: ReumaCoV-Brasil cross-sectional data.

"Declarations Ethical approval and consent to participateThis study was registered at the Brazilian Registry of Clinical Trials – REBEC, RBR-33YTQC. This study was approved by the National Research Ethics Commission (CONEP), approval number 3,955,206, of April 5, 2020, and all patients read and signed the informed consent form before inclusion, including consent for anonymous data publication, in accordance with the Declaration of Helsinki. Consent for publicationAll patients gave a consent for anonymous data publication, in accordance with the Declaration of Helsinki. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding Financial support from the Brazilian National Council for Scientific and Technological (CNPq) and Brazilian Society of Rheumatology."