> > > This blog post argues that the risk is even higher for COVID after vaccine.
(Argues so poorly that it doesn't really deserve a response, but I'll follow this digression)
> > It might as well be that those who are vaccinated and still get sick are just predisposed to heart complications.
> No, it's based on a study with a sample size of 42 million
If someone is in poor health, they may be
A) more likely to get COVID, despite being vaccinated, AND
B) more likely to have heart problems
In turn, it doesn't matter what the sample size of your study is. A & B will be correlated, even though there's no causal relationship between vaccination+covid->heart problems; the causal relationship is between "poor health" and "heart problems".
(Argues so poorly that it doesn't really deserve a response, but I'll follow this digression)
> > It might as well be that those who are vaccinated and still get sick are just predisposed to heart complications.
> No, it's based on a study with a sample size of 42 million
If someone is in poor health, they may be
A) more likely to get COVID, despite being vaccinated, AND
B) more likely to have heart problems
In turn, it doesn't matter what the sample size of your study is. A & B will be correlated, even though there's no causal relationship between vaccination+covid->heart problems; the causal relationship is between "poor health" and "heart problems".