“To ascertain COVID-19... Four jurisdictions reported hospitalizations only where COVID-19 was the cause, and seven reported COVID-19 cases in persons hospitalized for any cause.”

Data was based on interpretations of case information which could be subject to bias. Keep in mind the volume of over reporting, and keep in mind that whomever recorded the data could interpret died with COVID as died from COVID.

There are other bodies of work conflicting with this study...which ‘muddies’ the water. Just need to look at multiple sources and always be keen on the methodology.

Update to include below anons statement that data seems to be fully vaccinated (2 shots >14 days) vs not fully vaccinated.