Table 1.

Characteristics of the study population and results from cerebrospinal fluid analysis (607 patients)

	MS	CIS	OIND	NIND
N	179	116	94	218
Female N (%)	107 (59.8)	85 (72.4)	52 (55.3)	121 (55.5)
Age at diagnosis mean ± SD	40.0 ± 13.1	38.9 ± 14.3	43.1 ± 11.2	61.3 ± 9.8
IgG OCB N (%)	141 (78.8)	72 (62.1)	12 (12.8)	3 (1.4)
IgG index (median, IQR)	0.68 (0.56–0.88)	0.59 (0.51–0.84)	0.52 (0.47–0.60)	0.48 (0.44–0.51)
κFLC index (median, IQR)	28.19 (9.81–61.52)	21.84 (6.52–56.19)	1.94 (1.37–4.63)	1.67 (1.36–2.28)

MS multiple sclerosis, CIS clinically isolated syndrome, OIND other inflammatory neurological diseases, NIND not inflammatory neurological diseases, OCB oligoclonal bands, IQR interquartile range, κFLC kappa free light chains