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Kaplan-Meier cumulative incidence curve. Time to next attack or three-month confirmed EDSS worsening in patients retrospectively classified as meeting newer diagnostic criteria for MS at baseline.
*Hazard ratio from Cox proportional hazards model with effects for treatment adjusted for the stratification factor (region); p values from two-sided Wald test.
CI: confidence interval; EDSS: Expanded Disability Status Scale; HR: hazard ratio; MS: multiple sclerosis.
