Abstract
Although certain autoimmune diseases (AIDs) have been associated with an increased rate of heart failure (HF), data on the long-term rate of HF across the spectrum of AIDs are lacking. We investigated the long-term rate of HF in individuals with a history of 28 different AIDs. Individuals diagnosed with an AID (2000-2021) were identified through Danish nationwide registries. Each patient with AID was matched with four individuals from the background population by age, sex, and year of inclusion. Multivariable Cox regression was used to compare the rate of HF between the AID and the background population, overall and according to individual AIDs. In total, 272 959 patients diagnosed with AID were matched with 1 091 836 individuals without AID (median age 55 years; 62% women; median follow-up 7.9 years). The 10-year cumulative incidence of HF was 5.2% for patients with AID and 3.5% for matched individuals. Patients with any AID had a higher associated rate of HF than matched individuals (hazard ratio [HR] 1.55, 95% confidence interval [CI] 1.52-1.59). Patients with each of the AIDs had a higher associated rate of incident HF compared with matched individuals from the background population, although the association was not statistically significant for Reiter's and Behcet's disease. The highest relative rates were observed in patients with systemic sclerosis (HR 3.31, 95% CI 2.63-4.16) and Addison's disease (HR 3.03, 95% CI 2.35-3.91). Patients with AID, irrespective of the type, had a higher associated rate of HF compared to the background population. Further research is needed to clarify whether screening for cardiovascular risk is beneficial.
Published Version
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