Table 3

Relative risk of readmission to hospital for any cause within 90 days of follow-up from discharge for new onset myocarditis in individuals with myocarditis associated with SARS-CoV-2 mRNA vaccination, myocarditis associated with covid-19 disease, and conventional myocarditis (Nordic myocarditis cohort)

Type of myocarditisReadmission to hospital for any cause (No of patients)Total No of patientsRelative risk (95% CI) of readmission
Vaccination625300.79 (0.62 to 1.00)
Covid-1991090.55 (0.30 to 1.04)
Conventional98866381 (reference)
  • CI=confidence interval.