Key clinical point: The incidence of rheumatoid arthritis (RA) during the pandemic period was significantly higher in individuals who did vs did not develop COVID-19, with patients age 51-60 years having the seemingly highest risk.
Major finding: The incidence rates of developing seropositive RA (incidence rate ratio [IRR] 1.60; 95% CI 1.16-2.22) and unspecified RA (IRR 2.93; 95% CI 2.04-4.19) during the pandemic period (2020-2022) were significantly higher in patients with vs without previous COVID-19, with the incidence rates being the highest in the age group of 51-60 years vs the age group of 18-30 years (hazard ratio 9.16; 95% CI 7.24-11.59).
Study details: This retrospective, population-based cohort study analyzed the data of 3,335,084 individuals from the COOSALUD EPS registry (Columbia).
Disclosures: This study was supported by funds from COOSALUD EPS, Columbia. JS Marín and J-M Anaya declared employment with and receiving financial support from COOSALUD EPS, respectively.
Source: Marín JS et al. Increased incidence of rheumatoid arthritis after COVID-19. Autoimmun Rev. 2023;22(10):103409 (Aug 18). doi: 10.1016/j.autrev.2023.103409