High disease activity disability burden and smoking predict severe extra-articular manifestations in early rheumatoid arthritis.
Objectives. To identify patients with severe extra-articular RA (ExRA) in an early RA cohort and to investigate potential risk factors. Methods. From a cohort (n = 2900) in a structured programme for newly diagnosed RA, 40 patients with severe ExRA after RA diagnosis were identified. Disease activity score (DAS28), functional disability (HAQ) and treatment with glucocorticosteroids (GCs) and DMARD
