Via The Guardian, a global comparison of health care spending as % of the GSP:
No big surprise here. The US is in a class of its own, with 18% of the GSP going to health care spending. Having a practically all private, oligopolistic system not subject to anti-trust laws will do that. And that is also a system operating on a rationing basis, with a significant number of people completely rationed out of the system.
One can see the same trend in the per capita spending on health care:
And, of course, if a system is more privatized, a greater share of spending will be privatized as well, as part of household budgets: