I see that the HR estimates were calculated using adjustment for various factors, such as the age. Has there been any considerable variation of HR values across various ages? 

Why is there no data comparing to unvaccinated and previously infected without vaccination?  This report only shows results for those that have received vaccines.  This report would be more well rounded with additional data showing these 2 new variables with corresponding odds ratios.

Is the 2 dose AZ vaccine interval 12 weeks?

The sample size in this study is to small and in fact this is a poor study that does not prove what it says it does. I expect better from the government.

I absolutely agree with Mark Zlochin. It would be very interesting to compare the vaccine effectiveness in various age groups.

Where are the comparisons to the unvaccinated? Why was this group not included?