Patient and healthy control characteristics at baseline.

aMedian number of years from first symptoms of MS to inclusion.bTreatment within 4 months before baseline CSF sample.cThree patients were treated with high-dose corticosteroids, in addition to interferon-β (2 patients) and glatiramer acetate (1 patient) respectively, due to relapses.***pAbbreviations: RRMS = relapsing-remitting MS; PRMS = progressive MS with superimposed relapses; HC = healthy controls, EDSS = Expanded Disability Status Scale; CSF = cerebrospinal fluid, NA = not applicable.