I have added this link above to the wonderful Dr John Campbell who does some very insightful videos on You Tube on another thread but also think it should be included on this "shielding thread". I found this video in particular to be of some concern. There are links below the video which show the studies and the tables can be accessed via PDF on the studies pages, far too much Info to post here.
In a nutshell on this particular study in the UK it concentrated on a study on a fair amount of people admitted to hospital with Covid 19. Interestingly what is called in the study "Uncomplicated diabetes" which I assume is no obvious complications seemed to fare worse than "Complicated diabetes" which I find quite baffling. It also concerningly had "uncomplicated diabetes" second in the table behind heart disease and ahead of cancer as far as I can see which begs the question why ALL persons with diabetes are not on the Governments shielding list but according to these tables other conditions below diabetes are?! Until we know more at least!