I think tracking stain use with covid mortality/hospitalisation would be interesting. Lower cholesterol levels are linked with higher mortality for the over 70s. There again that experiment could only throw up a hypothesis given that most over 70s seem to be on statins!
Have asked my dad (t2) to talk to his doctor about his ACE inhibitors and the statins but I think I may also some send him some ubiquniol/co enzyme q10 too. Luckily he is getting plenty of natural vitamin D whilst quarantined with a large garden!