Familial risks for amyotrophic lateral sclerosis and autoimmune diseases
Population-level familial risks are not available for amyotrophic lateral sclerosis (ALS), and a few studies have analyzed familial association of ALS with other diseases. We used the Swedish Multigeneration Register to identify family members and link them to the Hospital Discharge Register to calculate standardized incidence ratios (SIRs) for familial association in ALS and 33 autoimmune disease