| RRMS group | Controls group |
Number of subjects | 30 | 30 |
Sex (M/F) Age scale (year) Median age (year) EDSS range (the first scan) Mean EDSS (the first scan) EDSS range (the 2nd scan) Mean EDSS (the 2nd scan) Disease duration range (year) Mean disease duration (year) | 12/18 16 - 69 48.4 ± 13.4 1 - 6.5 2.07 ± 1.71 0.5 - 7.5 2.12 ± 1.69 1 - 13 4.64 ± 2.9 | 12/18 16 - 69 45.5 ± 14.5 - - - - - - |