From: Transcriptional response to interferon beta-1a treatment in patients with secondary progressive multiple sclerosis
Groups
RRMS
SPMS
N
35
50
Mean age (years)*
40.2 ± 1.2
52.2 ± 1.1
F (M)
20 (15)
34 (16)
IFN treated (untreated)
10 (25)
20 (30)
Mean EDSS*
2.2 ± 0.2
6.8 ± 0.1
Mean disease duration (years)*
6.8 ± 0.8
18.1 ± 1.4