COVID‐19 Hospitalization Outcomes Among Patients With Autoimmune Rheumatic Diseases in the United States

Abstract Objectives: To investigate the outcomes of COVID‐19‐related hospitalizations among patients with autoimmune rheumatic diseases (ARDs) in the United States in 2020. The primary outcome was in‐hospital mortality, and secondary outcomes included intubation rate, length of hospital stay (LOS), and total hospital charges (THCs). Methods: Data for the study were obtained from the National Inpatient Sample database and included patients who were hospitalized with a principal diagnosis of COVID‐19. Univariable and multivariable logistic regression analyses were conducted to calculate odds