If the authors separate men 16-24 from 12-15 and 25-40, it would likely look worst in 16-24 age group.
But it's worse than that. They should have broken down the heart problems in infected by vaccinated and unvaccinated.
They did say that previous infection didn't cause the vaccine to be worse on the heart, but they didn't test whether the vaccine caused the infection to be worse. With two things that damage the heart how could they not magnify each other? It seems like some people should have gotten mild heart damage from the infection that turned mild damage from vaccine into serious problems. There should be some pile on effect from having both if they're both causing a range of damage.
One possibility is that the infection heart problems were caused by the vaccine, but simply went undetected until stress from the covid. In that case infection wouldn't magnify the vaccine risk, and that's consistent with what they found in this research.
But it's worse than that. They should have broken down the heart problems in infected by vaccinated and unvaccinated.
They did say that previous infection didn't cause the vaccine to be worse on the heart, but they didn't test whether the vaccine caused the infection to be worse. With two things that damage the heart how could they not magnify each other? It seems like some people should have gotten mild heart damage from the infection that turned mild damage from vaccine into serious problems. There should be some pile on effect from having both if they're both causing a range of damage.
One possibility is that the infection heart problems were caused by the vaccine, but simply went undetected until stress from the covid. In that case infection wouldn't magnify the vaccine risk, and that's consistent with what they found in this research.