Table 1. Selected Characteristics of Case Patients With MS and Matched Control Individualsa.
| Characteristic | No. (%) | |
|---|---|---|
| Case Patients (n = 30) | Control Individuals (n = 30) | |
| Group 1b | ||
| Sex | ||
| Male | 23 (76.7) | 23 (76.7) |
| Female | 7 (23.3) | 7 (23.3) |
| Race/ethnicity | ||
| White | 18 (60.0) | 18 (60.0) |
| Black | 9 (30.0) | 9 (30.0) |
| Hispanic | 3 (10.0) | 3 (10.0) |
| Other | 0 | 0 |
| Age, mean (SD) [range], y | ||
| First serum sample collection | 27.8 (6.5) [18-42] | 27.9 (6.5) [19 -42] |
| Second serum sample collection | 29.1 (6.6) [20-44] | 29.3 (6.8) [20-44] |
| MS onset | 28.5 (6.4) [19-42] | NA |
| Group 2c | ||
| Sex | ||
| Male | 23 (76.7) | 23 (76.7) |
| Female | 7 (23.3) | 7 (23.3) |
| Race/ethnicity | ||
| White | 18 (60.0) | 18 (60.0) |
| Black | 8 (26.7) | 8 (26.7) |
| Hispanic | 1 (3.3) | 1 (3.3) |
| Other | 3 (10.0) | 3 (10.0) |
| Age, mean (SD) [range], y | ||
| First serum sample collection | 27.2 (4.5) [22-41] | 27.1 (4.4) [22-41] |
| Second serum sample collection | 31.8 (4.7) [26-45] | 31.9 (4.8) [26-45] |
| MS onset | 33.5 (5.0) [27-48] | NA |
Abbreviations: MS, multiple sclerosis; NA, not applicable.
a
Percentages may not add up to 100% owing to missing data or rounding.
b
Case patients with 1 presymptomatic and 1 postonset sample and matched control individuals.
c
Case patients with only presymptomatic samples and matched control individuals.