Objectives To investigate temporal trends in incidence and severity of COVID-19 among
patients with systemic autoimmune rheumatic diseases (SARDs) from the first wave through
the initial Omicron wave. Methods We conducted a retrospective cohort study investigating
COVID-19 outcomes among patientswith SARD systematically identified to have confirmed
COVID-19 from 1 March 2020 to 31 January 2022 at Mass General Brigham. We tabulated
COVID-19 counts of total and severe cases (hospitalisations or deaths) and compared the …

Objectives: To investigate temporal trends in incidence and severity of COVID-19 among
patients with systemic autoimmune rheumatic diseases (SARDs) from the first wave through
the Omicron wave. Methods: We conducted a retrospective cohort study investigating COVID-
19 outcomes among SARD patients systematically identified to have confirmed COVID-19
from March 1, 2020 to January 31, 2022 at a large healthcare system in Massachusetts. We
tabulated COVID-19 counts of total and severe cases (hospitalizations or deaths) and …