Figure 1. Expanded Disability Status Scale (EDSS)–based improvement or worsening.

(A) Distribution of confirmed EDSS change from baseline to month 24 shown in half-point increments for alemtuzumab patients compared with subcutaneous interferon-β-1a (SC IFN-β-1a) patients. (B) Odds for improvement vs remaining stable or worsening with respect to the different functional systems of the EDSS at month 24. CI = confidence interval; OR = odds ratio of being improved vs stable or worsened.