A stratified  national database analysis by the University of California found boys ages 12-17 are more at risk from vaccine-associated myocarditis than COVID  https://www.medrxiv.org/content/10.1101/2021.08.30.21262866v1

https://rifnote.com/2021/09/11/a-new-study-from-university-of-california-found-that-teenage-boys-are-more-at-risk-from-vaccines-than-covid-6-times-more-likely-to-suffer-from-heart-problems-from-the-vaccine-than-be-hospitalized-fro/