Details of the five included real-world RA registries
| Consortium of Rheumatology Researchers of North America (CORRONA) | The CORRONA registry, established in 2001, is a US-based longitudinal registry of patients with RA (n=25 000) and psoriatic arthritis (n=4000). |
| Swedish Rheumatology Quality of Care Register (SRR) | The SRR was initiated in the mid-1990s and currently encompasses >40 000 patients with RA. |
| Norfolk Arthritis Register (NOAR) | The NOAR in the UK, established in 1989, is an early arthritis inception cohort registry that currently comprises over 4000 patients, identified from primary and secondary care. |
| Institute of Rheumatology Rheumatoid Arthritis (IORRA) | The IORRA cohort was established in 2000 at the Tokyo Women’s Medical University, Japan. Approximately 5000–5800 patients participate; more than 11 000 patients have been enrolled at least once. |
| CORRONA International | Based on the methodology employed in the CORRONA US registry, this new registry was established in 2011 as a joint collaboration with AstraZeneca. By the end of 2012, a total of 5790 patients had been included from 10 participating countries. |
RA, rheumatoid arthritis.