The 13200% does not appear to be in the actual study.
I would like to see how that is derived.
Not that I am a vax advocate, mind you. #PureBlood.
Conclusions re Covid Vaccination:
Based on passive surveillance reporting in the US, the risk of myocarditis after receiving mRNA-based COVID-19 vaccines was increased across multiple age and sex strata and was highest after the second vaccination dose in adolescent males and young men. This risk should be considered in the context of the benefits of COVID-19 vaccination.
https://jamanetwork.com/journals/jama/fullarticle/2788346