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. 2009 Nov 5;4(11):e7638. doi: 10.1371/journal.pone.0007638

Table 1. Demographic data, CSF and MRI findings in patients with clinically isolated syndrome (CIS).

CIS all CIS-CIS CIS-RRMS S*
n (female/male) 89 (56/33) 40 (22/18) 49 (34/15) NS
Age [years] Median (Range) 38.5 (13.1–70.9) 38.4 (16.8–70.9) 39.4 (13.1–63.6) NS
EDSS Median (Range) 2 (0–5) 2 (0–5) 3 (0–5) NS
Measles AI≥1.5 n (%) 37 (42) 11 (33) 26 (59) NS
Rubella AI ≥1.5 n (%) 32 (36) 9 (24) 23 (49) p = 0.03
Zoster AI ≥1.5 n (%) 32 (36) 12 (32) 20 (42) NS
MRZR n (%) 33 (37) 10 (25) 23 (47) p = 0.04
MRZS n (%) 19 (21) 4 (10) 15 (31) p = 0.018
OCB n (%) 74 (83) 27 (68) 47 (96) p = 0.001
MRI n (%) 59 (66) 21 (53) 38 (78) p = 0.02
Barkhof criteria n (%) 25 (28) 8 (20) 17 (35) p = 0.125

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