Table 1.

Days between symptom onset and hospital admission.

Group	1–3	4–7	8–14	≥ 15	No data
MS—optic neuritis (n = 129)	19% (25/129)	42% (54/129)	15% (19/129)	19% (24/129)	5% (7/129)
CIS—optic neuritis (n = 108)	31% (34/108)	27% (29/108)	19% (20/108)	20% (22/108)	3% (3/108)
Suspected optic neuritis (n = 44)	43% (19/44)	21% (9/44)	16% (7/44)	9% (4/44)	11% (5/44)

Time measured from patient reported onset of symptoms and time to presentation at hospital in days, groups set for 1–3 days, 4–7 days, 8–14 days and 15 days and longer.

MS, multiple sclerosis; CIS, clinically isolated syndrome; sON, suspected optic neuritis.