From: Congenital Abnormalities and Multiple Sclerosis
MS Index Cases
Spousal Controls
n
7063
2655
mean age in years (SD)
50.2 (10.1)
52.3 (9.6)
n (females)
5319
807
n (males)
1744
1848
sex ratio (f:m)
3:1
0.4:1
% relapsing remitting MS
82.3
/