How the U.S. ended up so far down the list.

We need to go behind those numbers though and have a look at how they are calculated. It's not all that unusual for international statistics of these kinds to contain some, well, how to put this, odd assumptions. The answers to that are here. This is what the WHO uses to calculate those numbers and the weightings they put upon them.

1. Health Level: 25%
2. Health Distribution: 25%
3. Responsiveness: 12.5%
4. Responsiveness Distribution: 12.5%
5. Financial Fairness: 25%

As you can see, there's a great deal of assuming going on there about what makes a decent health care system. In fact, only 37.5% of the weighting is actually about health care itself: the other 62.5% is about distribution and fairness, how equal or unequal it all is.

If you want, you can follow up the links in the column for more analysis, but the fact is that a large percentage of the rankings seems to be a judgment on "fairness," which could rate high even in nations with crappy actual health care.