Table 4 New or enlarging T2-hyperintense MRI lesions

Month no./no. of new or enlarging lesionsPlaceboIFNβ-1ap Value*
Values are expressed as no. of subjects (% of total available scans).
* Wilcoxon rank sum test.
IFNβ-1a = interferon β-1a.
Month 12195 (100)190 (100)
    0113 (58)147 (77)
    131 (16)22 (12)
    214 (7)9 (5)
    313 (7)4 (2)
    ≥424 (12)8 (4)<0.001
Month 24180 (100)176 (100)
    075 (42)111 (63)
    119 (11)18 (10)
    222 (12)20 (11)
    311 (6)10 (6)
    ≥453 (29)17 (10)<0.001