My prior for this is that the population-level differences are probably almost entirely centered around care-homes, and questions related to care-homes (or, more generally, very old people). Since my knowledge on comparisons between care-homes in scandinavian countries is close to zero, I cannot really provide any insight here. But something as banal as “did people who are sick stop going to work in care-homes” will probably bias the results far more than population density.
Edit: regarding population density: I don’t think there’s no effect, I just don’t know what the effect is or if it is even monotone. Almost all the people I know who got covid either (a) live in a village and don’t trust the government or (b) are highly-connected even for big-city standards. So it could be that there is a sweet spot local-minimum where people in cities feel super at risk because of all the strangers around them and isolate, but the effects of the additional density don’t meaningfully lead to more covid.
My prior for this is that the population-level differences are probably almost entirely centered around care-homes, and questions related to care-homes (or, more generally, very old people). Since my knowledge on comparisons between care-homes in scandinavian countries is close to zero, I cannot really provide any insight here. But something as banal as “did people who are sick stop going to work in care-homes” will probably bias the results far more than population density.
Edit: regarding population density: I don’t think there’s no effect, I just don’t know what the effect is or if it is even monotone. Almost all the people I know who got covid either (a) live in a village and don’t trust the government or (b) are highly-connected even for big-city standards. So it could be that there is a sweet spot local-minimum where people in cities feel super at risk because of all the strangers around them and isolate, but the effects of the additional density don’t meaningfully lead to more covid.