Chronic Widespread Pain in Patients with Rheumatoid Arthritis and the Relation Between Pain and Disease Activity Measures over the First 5 Years.
To study the prevalence of chronic widespread pain (ChWP), chronic regional pain (ChRP), and fibromyalgia in patients with early rheumatoid arthritis (RA) followed for 5 years after inclusion, and to study the effect of pain on measures of disease activity and function.
