Sick leave in patients with ankylosing spondylitis before and after anti-TNF therapy: a population-based cohort study.
Objective. To study levels of sick leave and disability pension before and after TNF-antagonist therapy in AS patients. Methods. Using the population-based South Swedish Arthritis Treatment Group register, we identified 139 AS patients (aged 18-58 years, 78% men), who between January 2002 and December 2008 started their first treatment with adalimumab, etanercept or infliximab. We linked data to t
