a. Mean age in years. b. For 6 treatment-naive patients, MS type was not specified. c. Median EDSS score; this information was not available for 7 treatment-naive patients and 6 IFN-β-treated patients
*t-test, Mann-Whitney U or χ2 tests; T2 lesion volumes and cumulative number of Gd+lesions were compared after logarithmic transformation. CDMS, clinically definite multiple sclerosis; CIS, clinically
