A 2-year multimodal prospective cohort study to predict sustained progression independent of relapse activity in multiple sclerosis
Background Disability accrual in multiple sclerosis (MS) is heterogeneous. We assessed whether a 2-year multimodal evaluation could identify patients who were developing progression independent of relapse activity (PIRA) or relapse-associated worsening (RAW). Methods Among the 81 MS patients with a 2-year follow-up and...