Unvaxxed includes folks who died at any time over X period. However, in order to be recently vaccinated or boosted, you need to have survived until that time - and that very survival until recent vaccination invalidates the statistical comparison - they have had fewer days to potentially die, and also the mere act of survival puts them …
Unvaxxed includes folks who died at any time over X period. However, in order to be recently vaccinated or boosted, you need to have survived until that time - and that very survival until recent vaccination invalidates the statistical comparison - they have had fewer days to potentially die, and also the mere act of survival puts them in a cohort less likely to die, generally (both statistically and by the fact that if at deaths door, unlikely to get vaccinated at that point - contra-indicated).
To meaningfully use that all-vaxed status data, you would need to know exactly when people were vaxed and then consider their days of not dying while they were unvaxxed in the unvaxxed category, as opposed to the vaxed - much more complicated data.
By using numbers of vaxed > 6 months ago, you reduce the impact of the noted issue because you are now comparing rate of death over not necessarily the same time period, but over at minimum a period of ~180 days.
Unvaxxed includes folks who died at any time over X period. However, in order to be recently vaccinated or boosted, you need to have survived until that time - and that very survival until recent vaccination invalidates the statistical comparison - they have had fewer days to potentially die, and also the mere act of survival puts them in a cohort less likely to die, generally (both statistically and by the fact that if at deaths door, unlikely to get vaccinated at that point - contra-indicated).
To meaningfully use that all-vaxed status data, you would need to know exactly when people were vaxed and then consider their days of not dying while they were unvaxxed in the unvaxxed category, as opposed to the vaxed - much more complicated data.
By using numbers of vaxed > 6 months ago, you reduce the impact of the noted issue because you are now comparing rate of death over not necessarily the same time period, but over at minimum a period of ~180 days.