Table 1.

Clinical features of the optic neuritis cohort at presentation (n=30)

Features	Results
Age at onset (years)–median (range)	10.2 (3.4–16.9)
Gender (female: male ratio)	1.1 (16/14)
Race	80 % Caucasian
Family history of multiple sclerosis	7 % (2/30)
Preceding infection	50 % (15/30)
Monosymptomatic (optic neuritis only)	70 % (21/30)
Unilateral optic neuritis	67 % (20/30)
Bilateral optic neuritis	33 % (10/30)
Papillitis	40 % (12/30)
Positive oligoclonal bands in cerebrospinal fluid	11 % (3/27)
Elevated immunoglobulin G index (3 0.7)	23 % (6/26)
Cerebrospinal fluid, pleocytosis	70 % (21/30)
Cerebrospinal fluid, elevated protein	10 % (3/30)
Abnormal Brain MRI	40 % (12/30)