Demographic data, CSF and MRI findings in patients with clinically isolated syndrome (CIS).

CIS all = all patients with CIS, CIS-CIS = patients with CIS that remained CIS over follow-up, CIS-RRMS = CIS patients with conversion to MS over follow-up, EDSS = Kurtzke Expanded Disability Status Scale, AI = antibody index, MRZR = AI for measles, rubella, zoster, two or more AI ≥1.5, MRZS = MRZ score >10, OCB = oligoclonal bands in cerebrospinal fluid, MRI = two or more lesions in T2-weighted magnetic resonance imaging of the brain. NS = not significant, S = statistical significance. * CIS-CIS vs. CIS-RRMS