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