Graves' Disease and Toxic Nodular Goiter Are Both Associated with Increased Mortality But Differ with Respect to the Cause of Death: A Danish Population-Based Register Study

Background: Hyperthyroidism has been associated with increased all-cause mortality. Whether the underlying cause of hyperthyroidism influences this association is unclear. Our objectives were to explore whether mortality risk and cause of death differ between Graves' disease (GD) and toxic nodular goiter (TNG). Methods: This is an observational cohort study, using record-linkage data from nationwide Danish health registers. A total of 1291...