Something that wasn't confounded with deaths by suicide and high-speed automobile accidents, both of which are so anomalously high in the US that when you factor them out of life expectancy the rankings are totally different.

Say what you will about the worldwide quality of mental health care, but there's not a whole lot a good hospital can do once you've set out to harm yourself, and that one particular tragically underserved health problem is not what people are thinking about when they suggest "Americans pay more money to get less than what Europeans do". That last notion is dubious at best.