[dundarious]

> Setting: Use of death certificates from the National Vital Statistics System in the United States, which were linked to occupation, 1 January 2020-31 December 2022.

Doesn't this mean that if you get Alzheimer's and as such are unable to work, that it is quite unlikely you would show up as a taxi/ambulance driver in this study?

Such studies need to account for transfers between groups, but rarely seem to do so (I did not read the complete paper, please correct me as necessary).

[dmtroyer]

they spend almost a whole page addressing this.

... Alzheimer’s disease symptoms typically develop after patients’ working years, with only 5-10% of cases occurring in people younger than 65 years (early onset).11 14 While subtle symptoms could develop earlier, they would still most likely be after a person had worked long enough to deem the occupation to be a so-called usual occupation ...

[dundarious]

Yes I saw someone say as much in other comments. My suspicion that transfers were not accounted for because the employment was a snapshot in time between 2 years was definitely wrong.

"What the funeral director deemed/was instructed to record as 'career'" is still somewhat limited, but is plausibly good.