Does the widespread prescribing/usage of placebos have something to do with this? Reuters reports:

CHICAGO (Reuters) – New survey data ranking patients’ experiences in U.S. hospitals find many institutions fall short, particularly when it comes to managing pain, researchers said on Wednesday.

The data come from newly available customer satisfaction surveys on 2,400 institutions or 60 percent of U.S. hospitals.

While customer satisfaction surveys are commonplace in service industries, patients in the United States rarely have had the chance to see how their hospital fares compared with the competition.