Universal Medicare rankings by country, with Canada near the top, and the poor performance of the United States:
In the first chart here, we can see the world nations with Universal Medicare, with Canada in third or fourth place, at least according to two sources (although we sometimes rank around tenth):
In the second chart, we see cost expenditures and cost benefit analyses:
The United States has the worst performance of all developed nations in the world, and sometimes worse than in third world countries. People without private insurance in the USA are stuck. Even people with private insurance more often than not are not covered for pre-existing conditions. For instance, I had my cataracts removed from both eyes at the cost of only $2,500 C per eye (C$ worth about 78 cents US$), whereas in the USA the cost is $4,500 US per eye, and sometimes insurance companies will only pay for the operation, and not the lenses if you are insured.