Omicron_Covid_Update, page-473

Here is a simple example of why more unvaxxed are in hospital.

If you take 100,000 healthy Australians between 50 and 60yrs about 90,000 will be vaxxed and 10,000 unvaxxed.

You might find 10 vaxxed in hospital and 5 unvaxxed in hospital.

The ratio of vaxxed is 10/90,000 or 1 in 9,000.

The ratio of unvaxxed is 5/10,000 or 1 in 2,000.

Unvaxxed is overrepresented by a factor of 4.5