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Duration of first and second courses of TNFi
| Course | Single therapy N = 262 | Interrupted therapy N = 142 | Switched therapy N = 159 |
|---|---|---|---|
| First course, mean months (95% CI) | 34.3 (30.9, 37.7) | 18.3 (15.5, 21.0) | 17.7 (14.7, 20.8) |
| Second course, mean months (95% CI) | NA | 15.8 (12.9, 18.6) | 17.8 (14.9, 20.6) |
TNFi tumor necrosis factor inhibitor, CI confidence interval, NA not applicable
