Table 1.
Descriptive characteristics of multiple sclerosis/clinically isolated syndrome patients evaluated at initial visit.
| Total | |
|---|---|
| n = 541 | |
| Age at encounter (years), median (range) | 51 (19–90) |
| Disease duration (years), median (range) | 11 (0–59) |
| Female, n (%) | 411 (76) |
| Body mass index (mg/kg2), median (range) | 27 (16–50) |
| Race, n (%) | |
| Caucasian | 309 (82) |
| Hispanic/Latino | 16 (4) |
| African American | 34 (9) |
| Asian | 7 (2) |
| American Indian or Native Alaskan | 2 (<1) |
| Other | 8 (2) |
| Education (years), median (range) | 16 (5–27) |
| Tobacco, n (%) | |
| Never | 272 (50) |
| Former | 187 (35) |
| Current | 82 (15) |
Percentages calculated among nonmissing.
Missing data: race (n = 165, 31%), education (n = 26, 7%), body mass index (n = 34, 9%).