New MRI activity during months 0-6 (n (%))
| Subgroup | Low activity | Moderate activity | High activity |
|---|---|---|---|
| RRMS | 10 (32) | 18 (58) | 3 (10) |
| SPMS | 14 (50) | 9 (32) | 5 (18) |
Low activity = 0-2 new active lesions; moderate activity = 3-30 new active lesions; high activity = > 30 new active lesions.