A Non-Interventional Study in Patients With Rheumatoid Arthritis Who Are Treated With RoActemra/Actemra (Tocilizumab)

Inclusion Criteria: * Adult patients, \>/= 18 years of age * Moderate to severe rheumatoid arthritis according to the revised (1987) ACR criteria * Patients in whom the treating physician has made the decision to commence RoActemra/Actemra treatment in accordance with the local label; this can include patients who have received RoActemra/Actemra treatment within 8 weeks prior to the enrolment visit * Patients who for any reason do not take methotrexate and the treating physician has made a decision to prescribe RoActemra/Actemra as monotherapy * Patients who were previously on a TNF inhibitor as monotherapy, and the treating physician has made a decision to prescribe RoActemra/Actemra as monotherapy * Concomitant treatment with corticosteroids (orally and intra-articularly) and/or NSAIDs is allowed Exclusion Criteria: * Patients who have received RoActemra/Actemra more than 8 weeks prior to the enrolment visit * Patients who have previously received RoActemra/Actemra in a clinical trial or for compassionate use * Patients receiving concomitant DMARD treatment for rheumatoid arthritis (e.g. hydroxychloroquine, sulfasalazine, methotrexate, leflunomide, gold compounds, cyclosporine) * Patients who have received treatment with an investigational agent within 4 weeks (or 5 half-lives of the investigational agent, whichever is longer) before starting treatment with RoActemra/Actemra * Patients with a history of autoimmune disease or any joint inflammatory disease other than rheumatoid arthritis