So far, despite many claims to the contrary, I get the impression that a final conclusion has yet to be reached about when, how and who it may benefit.
The purported or measured benefits should be weighed against the indisputable side effects.
Personally, I take 75mg enteric coated aspirin daily, and have done for a little over a decade, but that is a consequence of my personal evaluation of the evidence I have encountered and a desire to optimise my chances of fulfilling my original plan - to live for ever and rule the universe. I do not claim that my choice is statistically valid or even reasonable but ive started to take it with vit c,i have read it protects the side effects of the aspirin,for myself its a no brainer if it stops heart atack,strokes cancer etc and anxiety, it makes me feel wonderful ,