Clinical characteristics and long-term outcomes in SLE-myositis overlap syndrome: a controlled retrospective cohort study.
OBJECTIVES Systemic lupus erythematosus (SLE) with concurrent inflammatory myositis (IIM) has a distinct clinical phenotype, yet its impact on long-term outcomes has been poorly defined. We aimed to determine the risk of mortality, malignancy, and severe renal disease in a large SLE cohort stratified by the presence of...