There may be in general, but in this case I don't think it's a factor. Something like 40% of deaths have happened in nursing homes, where residents don't have much agency to reduce their individual risk.
But that would distort the risk for "people over 80", wouldn't it? Like if you are in a nursing home, the risk is probably higher than average for that age group, if you are not, the risk is lower than average.
At least in the UK, 75% of deaths from covid are from people 75 and older. I imagine that it's similar here in the US.