[avalind]

The difference in heterogeneity between the US and the other countries has probably increased from 1950 to today. But I also suspect that some of this difference in life-expectancy between the US and the 14 others is that it might be easier to implement preventive health care measures that reach the whole population in societies that have more comprehensive health care insurance by default.

It would be really interesting to see data comparing the healthiest people in the US and other similarly developed countries.