Table 1. Demographic data of patients with ON.

Characteristics	AQP4-IgG+	MS	MOG-IgG+	Idiopathic-ON	HC
Patients	25	12	6	14	30
Sex (F/M)	24/1	11/1	4/2	13/1	28/2
Age (y)	43.3±13.5 (19-76)	40.8±13.3 (24-61)	38.3±14.9 (24-58)	44.3±6.2 (33-54)	42.9±1.7 (40-46)
Age at onset (y)	34.5±13.8 (17-71)	32.1±10.1 (17-50)	33.8±16.3 (18-54)	39.9±8.9 (21-54)	-
Disease duration (y)	9.6±7.4	8±4	4.4±2.7	4±6.8	-
No. of ON attacks	2 (1-5)	1(1-5)	2.5 (1-3)	1 (1-2)	-
History of bilateral ON, n (%)	13 (52)	4 (33)	3 (50)	4 (29)	-
ON eyes, n (%)	46 (92)	17 (71)	10 (83)	20 (71)	-

MS: Multiple sclerosis; ON: Optic neuritis; HC: Healthy controls.

mean±SD