COVID-19 in patients with rheumatic diseases in northern Italy: a single-centre observational and case–control study
In this cohort of patients with rheumatic and musculoskeletal diseases in a geographical region with a high prevalence of COVID-19, a poor outcome from COVID-19 seems to be associated with older age and the presence of comorbidities rather than the type of rheumatic disease or the degree of pharmacological immunosuppression.