Fig 1. Cox proportional hazard regression model comparing disease length leading to MS-related deaths and unrelated deaths.

Those whose death was MS-related had a shorter disease course from symptom onset to death than those whose death was unrelated (R² = 0.016, n = 504, p<0.01; MS death 1.32, 95CI 1.08–1.61). Dotted line represents MS-related deaths; solid line represents non-MS-related deaths.