Table 1 Subject demographic and clinical characteristics

Age (yr)

50 ± 10

50 ± 11

50 ± 10

Sex (% male)

23.1

15.9

19.0

Disease duration (yr)

12 ± 8

11 ± 8

12 ± 8

Disease Steps Score (%)

0

15.4

8.7

11.6

1

26.9

24.6

25.6

2

17.3

13.0

14.9

3

5.8

11.6

9.1

4

19.2

17.4

18.2

5

11.5

11.6

11.6

6

3.8

13.0

9.1

MSIS-29

61 ± 18**

77 ± 26

70 ± 24

Disease Course (%)*

Relapsing-remitting

51.9

55.1

53.7

Secondary progressive

23.1

13.0

17.4

Primary progressive

1.9

17.4

10.7

Progressive relapsing

0.0

4.3

2.5

Unknown

23.1

10.1

15.7