Impact of Familial Multiple Sclerosis on Disease Progression in Human Subjects
In a study of 3,094 individuals with multiple sclerosis (MS), no significant links were found between having a family history of MS and long-term disability progression, cognitive decline, or MRI activity. Hazard ratios for disability worsening among those with first and second-/third-degree relatives were close to 1.0, indicating minimal difference compared to those without a known family history.