Perceived illness-related uncertainty among patients with mid-stage relapsing-remitting multiple sclerosis.

Background: Patients with multiple sclerosis (MS) have to deal with a variable disease trajectory often associated with disability and productivity loss.

Objective: This study aimed to assess illness-related uncertainty and associated correlates in patients with relapsing-remitting multiple sclerosis (RRMS) beyond the near diagnosis phase.

Methods: We conducted a multicenter, non-interventional study including patients diagnosed with RRMS (2017 revised McDonald criteria) and a disease duration of 3 to 8 years.