That does not mean that all the care provided to dying patients — or to any patient — is valuable. Another study finds that high end-of-life spending in a region is closely related to the proportion of doctors in that region who use treatments not supported by evidence — in other words, waste.

“People at high risk of dying certainly require more health care,” said Jonathan Skinner, an author of the study and a professor of economics at Dartmouth. “But why should some regions be hospitalizing otherwise similar high-risk patients at much higher rates than other regions?”

There were two areas where the United States really was quite different: We pay substantially higher prices for medical services, including hospitalization, doctors’ visits and prescription drugs. And our complex payment system causes us to spend far more on administrative costs. The United States also has a higher rate of poverty and more obesity than any of the other countries, possible contributors to lower life expectancy that may not be explained by differences in health care delivery systems.

Just because other countries use the hospital more doesn’t mean that every hospitalization in the United States is appropriate. Jonathan Skinner, a professor at Dartmouth, who has studied patterns in health care use in the United States, noted that there probably is money to be saved by eliminating some of the extra scans and operations that are much more common in the United States than elsewhere.