Table 1 Clinical and demographic details of MS index cases and controls
| Â | 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 | / |