| Number of patients | EDSS | P (Student’s t) |
A | |||
 HLA-DRB1*15:01 positive | 18 | 3.08 | 0.990 |
 HLA-DRB1*15:01 negative | 27 | 3.09 |  |
 HLA-DQB1*06:02 positive | 17 | 3.41 | 0.472 |
 HLA-DQB1*06:02 negative | 28 | 2.89 |  |
 HLA-B*15:01 positive | 15 | 4.20 | 0.098 |
 HLA-B*15:01 negative | 30 | 2.53 |  |
 HLA-B*39:01 positive | 11 | 3.50 | 0.504 |
 HLA-B*39:01 negative | 34 | 2.96 |  |
 | Number of patients | Age of onset | P (Student’s t) |
B | |||
HLA-DRB1*15:01 positive | 18 | 33.3 | 0.618 |
HLA-DRB1*15:01 negative | 27 | 35.0 | Â |
HLA-DQB1*06:02 positive | 17 | 33.0 | 0.545 |
HLA-DQB1*06:02 negative | 28 | 35.1 | Â |
HLA-B*15:01 positive | 15 | 35.1 | 0.752 |
HLA-B*15:01 negative | 30 | 33.9 | Â |
HLA-B*39:01 positive | 11 | 30.0 | 0.142 |
HLA-B*39:01 negative | 34 | 35.7 | Â |