Table 3 Relapse characteristics according to discontinuation status at 1, 2 and 3 years
sc IFN β-1a tiw | ||||||
|---|---|---|---|---|---|---|
Follow-up at 1 year | Follow-up at 2 years | Follow-up at 3 years | ||||
Continued | Discontinued | Continued | Discontinued | Continued | Discontinued | |
Total patients, n (%) | 2505 (63.0) | 1470 (37.0) | 1310 (50.5) | 1282 (49.5) | 736 (44.2) | 928 (55.8) |
Relapses per year, mean (SD) | 0.18 (0.52) | 0.32 (0.67) | 0.14 (0.34) | 0.26 (0.49) | 0.12 (0.26) | 0.23 (0.42) |
Patients with high relapses, n (%)a | 97 (3.9) | 84 (5.7) | 46 (3.5) | 73 (5.7) | 21 (2.9) | 52 (5.6) |