Table 2 Baseline and first-year MRI data and conversion to clinically definite MS (CDMS)

ParametersTotalConversion to CDMS
Values are expressed as n (%).
* 3 or 4 Barkhof criteria.
† 3 or 4 Barkhof criteria or two lesions plus oligoclonal bands.
‡ At least one new T2 lesion.
Baseline MRI (n = 139)
    Normal38 (27)2 (5)
    One lesion8 (6)1 (12.5)
    Two lesions9 (6.5)2 (22)
    ≥3 lesions84 (60)33 (39)
    <3 Barkhof criteria81 (58)11 (14)
    Dissemination in space*58 (42)27 (47)
    Dissemination in space77 (56)33 (43)
First-year MRI (n = 139)
    Dissemination in time62 (45)29 (47)
Baseline and first-year MRI
    Dissemination in space and  time at 12 mo51 (37)30 (59)