From: Rheumatoid arthritis and incident fracture in women: a case–control study
Rheumatoid arthritis (cases) | Non-rheumatoid arthritis (controls) | |||
---|---|---|---|---|
Year | RA population at risk | Fracture numbers (%) | Population at risk* | Fracture numbers (%)** |
1994 | 319 | 3 (0.94%) | 57,491 | 601 (1.04%) |
1995 | 333 | 5 (1.50%) | 57,477 | 690 (1.20%) |
1996 | 356 | 11 (3.09%) | 57,454 | 690 (1.20%) |
Total | 1,008 | 19 (1.88%) | 172,422 | 1,981 (1.15%) |