Table 2. Considering the normalized corpus callosum index cutoff of 0.5%, a subgroup of the “clinically stable” patients seemed to behave as “progressive”.
| “Stable” patients | “Progressive” patients | |
|---|---|---|
| N | 115 (77.7%) | 33 (22.2%) |
| Mean age (range) | 32.4 (17-44) | 37.3 (27-61) |
| Male/Female | 44/71 | 18/15 |
| Years of disease (mean) | 6.3 (3.7-8.8) | 8.6 (7.1-11.7) |
| Mean EDSS (range) | 3.1 (1-4) | 3.9 (2.5-5-5) |
| ARR | 0.18 | 0.22 |
| Mean T2W lesions (range) | 5.2 (4-9) | 8.7 (6-17) |
| Annualized nCCI (range) | 0.317 (0.28-0.433) | 0.541 (0.508-0.583) |
EDSS: Expanded Disability Scale Score; ARR: annualized relapse rate; T2W: Magnetic Resonance Imaging T2-weighted image; nCCI: normalized corpus callosum index.