[jeroenhd]

Include the cost of an individual's health insurance (and many other public services that Americans are charged for despite their similar tax load) and I think the cards wouldn't be quite so stacked in favour of the USA.

A direct comparison like this can't be made. I'm not even sure where your comparison comes from, the median American income seems to be about $5k lower than the median UK income.

[hollerith]

GDP and income per capita figures do include health care and other services provided by the government.

[stevenwoo]

You are right but there's a thing where if one has to worry about the affordability of healthcare one avoids seeing medical expertise at all for fear of crushing cost or debt. That probably isn't put into the normal economic measures though may be reflected in maternal outcomes or lifespan trends per income. A long wait as some complain about in Canada or the UK national healthcare seems like a luxury to many in the USA.