Demographic data of the patients with MS, CIS and controls.

aAge (in years) refers to age at sampling time point.bDisease duration (in years) refers to the period from disease onset until year 2011.Abbreviations: RRMS, relapsing-remitting multiple sclerosis; SPMS, secondary progressive MS; PPMS, primary progressive MS; CIS, clinically isolated syndrome; iOND, other neurological diseases with inflammation; OND, other neurological diseases; EDSS, expanded disability status scale; OCB, oligoclonal IgG bands; NA, not applicable (or available); CSF, cerebrospinal fluids.