Summary

Researchers have long known that these diseases tend to run in families, but the genetic relationships between different autoimmune diseases have remained unclear. In the current study, researchers analyzed data from Swedish national registers. The material included more than 6.3 million individuals born between 1932 and 1983, including nearly 3.84 million sibling pairs. In total, 22 autoimmune diseases were studied from 1969 to 2013.

AI summaries can be wrong sometimes—always verify important details using the source article.