Re no. 6, that's a subset of obesity which can be measured relative to other countries.
I would add litigation and defensive medicine to your list.
It would be interesting to try to figure out what % of the US excessive cost is attributable to each of these items.
Somehow we should also look at disparities amongst the US states. For example, (and it's hard to research this without Wikipedia) my recollection is that my state has a higher life expectancy that most European countries, but poorer states (such as Mississippi) have a much lower life expectancy. If you can compare health care spending by state with life expectancy, we may learn something.
I would add litigation and defensive medicine to your list.
It would be interesting to try to figure out what % of the US excessive cost is attributable to each of these items.
Somehow we should also look at disparities amongst the US states. For example, (and it's hard to research this without Wikipedia) my recollection is that my state has a higher life expectancy that most European countries, but poorer states (such as Mississippi) have a much lower life expectancy. If you can compare health care spending by state with life expectancy, we may learn something.