Table 1.
Demographic and Clinical Characteristics
| Total group (n = 231) | RRMS (n = 187) | CIS (n = 44) | |
|---|---|---|---|
| Age, M ± SD (years) | 14.8 ± 2.6 | 14.8 ± 2.6 | 14.8 ± 2.6 |
| Female, n (%) | 129 (56) | 105 (56) | 24 (55) |
| Race | |||
| Caucasian, n (%) | 168 (73) | 133 (71) | 35 (80) |
| African American, n (%) | 35 (15) | 31 (17) | 4 (9) |
| Asian, n (%) | 8 (3) | 6 (3) | 2 (4) |
| Mixed/other, n (%) | 20 (9) | 17 (9) | 3 (7) |
| Hispanic ethnicity, n (%) | 66 (29) | 51 (27) | 15 (34) |
| Disease duration, M ± SD (years) | 1.9 ± 2.2 | 2.2 ± 2.3 | 0.8 ± 1.7 |
| Age at symptom onset, M ± SD (years) | 12.9 ± 3.5 | 12.7 ± 3.6 | 14.0 ± 3.0 |
| EDSS score, median (range) | 1.5 (0–6.5) | 1.5 (0–5.5) | 1.0 (0–6.5) |
| NP indices ≤ –1 SD, median (range) | 4 (0–20) | 5 (0–20) | 4 (0–17) |
| One-third of NP indices ≤ –1 SD, n (%) | 73 (32) | 65 (35) | 8 (18) |
*
Abbreviations: CIS, clinically isolated syndrome; EDSS, Expanded Disability Status Scale; NP, neuropsychological; RRMS, relapsing remitting multiple sclerosis; SD =Standard Deviation.