> Also, as another comment mentions, I can't see anything indicating they controlled for tobacco smoking. Give it a bit; it was just discussed at a conference

> Also, as another comment mentions, I can't see anything indicating they controlled for tobacco smoking. Give it a bit; it was just discussed at a conference and not even the preprint is out. This is why I hate the scientific press; everyone jumps the gun, and people who want more information are left hanging until the study no longer has public attention.