Clinical characteristics of the control group at baseline
| Characteristics | Number | Percentages |
|---|---|---|
| Sex | ||
| Female | 50 | 68 |
| Male | 23 | 32 |
| Age at diagnosis | ||
| Mean (IQR) | 37.7 | 11 |
| Medical history | ||
| Multiple sclerosis | 16 | 22 |
| Inaugural optic neuritis | 53 | 73 |
| Recurrent optic neuritis | 4 | 5 |
| Expanded Disability Status Scale score | ||
| Mean (range) | 2.15 (1–5) | |
| Treatment | ||
| No | 68 | 93 |
| Glatiramer acetate | 2 | 3 |
| Interferon | 2 | 3 |
| Mitoxantrone | 1 | 1 |
| MS course duration (yr) | ||
| Mean (range) | 6.1 (0–24) | |
| Final diagnosis after MRI | ||
| Multiple sclerosis | 56 | 77 |
| Clinically isolated syndrome | 17 | 23 |
Note:—IQR indicates interquartile range.