What question did this study set out to answer?

To determine the incidence of autoimmune and immune-mediated diseases in patients diagnosed with myocarditis.

January 10, 2026International Journal of Cardiology0 citationsOpen Access

Risk of developing autoimmune and immune mediated disease following a diagnosis of myocarditis - a Danish nationwide register-based cohort study

Patients with myocarditis had a significantly higher incidence of autoimmune and immune-mediated disease compared to the general population.

To determine the incidence of autoimmune and immune-mediated diseases in patients diagnosed with myocarditis.
Nationwide register-based cohort study in Denmark
Analysis of patient records following myocarditis diagnosis
Assessment of subsequent autoimmune disease development
Patients with myocarditis showed a significantly higher incidence of autoimmune diseases.
The incidence was consistent across various types of autoimmune conditions.

Does a diagnosis of myocarditis increase the risk of developing autoimmune and immune-mediated disease?

Population

Danish nationwide cohort of patients with a diagnosis of myocarditis

Intervention

Diagnosis of myocarditis (exposure)

Outcome

Incidence of autoimmune and immune-mediated diseasehard clinical

A diagnosis of myocarditis is associated with a significantly higher subsequent incidence of autoimmune and immune-mediated diseases.

Absolute Event Rate: 0% vs 0%

Patients with myocarditis had a significantly higher incidence of autoimmune and immune-mediated disease.

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