Predictors of severe self-reported disability in RA in a long-term follow-up study
Purpose: Identify factors predictive for severe self-reported disability in patients with rheumatoid arthritis. Methods: Patients (n = 1910) were sent a questionnaire 5-18 years after disease onset. Outcomes were the Health Assessment Questionnaire (HAQ), Rheumatoid Arthritis Outcome Score (RAOS) and physical activity. The tertile of patients most affected by the disease were compared to those les