On: Total cholesterol and all-cause mortality – a study among 13M adults

[fauigerzigerk]

I don't understand why it matters for the conclusion whether lower cholesterol (or specifically LDL) is caused by diet or statins or something else altogether (if the assumption is that high LDL affects mortality).

[Edit] I just read another one of your comments that answers my question, and I think you're right: https://news.ycombinator.com/item?id=20138685