Serum vitamin C level (mg/dL)
RRMS (n = 28)
SPMS (n = 12)
P
Range
0.30 - 0.75
0.28 - 0.60
0.959
Mean ± SD
0.46 ± 0.11
0.47 ± 0.18
Median
0.46
0.48