Table 3. Demographic characteristics of the 33 patients.

Number of cases	n=33
Female/male	20/13
Age, y, mean±SD	40.2±11.3
Onset of disease, y, mean±SD	30.8±9.1
Duration of disease, y, mean±SD	9.7±5.2
EDSS, mean±SD	3.5±1.8
DMD's treatment	21
Annual attacks, mean±SD	2.3±1.5
Family history	2

DMD's: disease modifying drugs, EDSS: Expanded Disability State Score.