Table 2 One year drug survival of first and second tumor necrosis factor antagonist, by diagnosis
Diagnosis | Rank of treatment | Number starting | Number failed | Survival (95% CI) |
|---|---|---|---|---|
Rheumatoid arthritis | First | 2,235 | 518 | 0.83 (0.82–0.84) |
Second | 194 | 72 | 0.79 (0.74–0.83) | |
Ankylosing spondylitis | First | 300 | 49 | 0.89 (0.86–0.92) |
Second | 8 | 1 | 0.95 (0.72–0.99) | |
Psoriatic arthritis | First | 289 | 55 | 0.87 (0.83–0.90) |
Second | 15 | 8 | 0.81 (0.65–0.90) | |
Juvenile idiopathic arthritis | First | 126 | 16 | 0.90 (0.84–0.94) |
Second | 7 | 7 | 0.49 (0.22–0.72) |