"Further, they found that Shingrix reduced dementia risk by 23–27% than did vaccines against other illnesses."

Could you expand on this a little, please? I think what you meant to write is that it "reduced dementia risk by 23-27% MORE than did vaccines against other illnesses."

But is that significant?

All I mean is that if vaccines against other illnesses reduced dementia risk by only a tiny amount, then a 23 to 27% increase might not actually mean anything. After all, even a large factor of a very small number can remain a very small number.

So I'm wondering about your empirical claim about months. Is it supportable.

Sorry, I don't mean to criticize over much, but I'm just not sure I understand what you're writing.