Two recent research papers remind us that it may be difficult to cut U.S. healthcare spending without harming quality. The first, written by a research team led by University of Chicago economist Tomas Philipson, appears in the latest issue of Health Affairs and has deservedly garnered a fair bit of media attention. The authors examine cancer spending and survival times for patients in the United States and ten European countries during the period 1983-1999 (later data were not available.) Their data confirm what we already know about health spending; the average cost of treating a cancer patient was about $15,000 higher in the United States. But the data also show that the typical U.S. cancer patient lives nearly two years longer; most of the difference is attributable to prostate and breast cancer patients. The gain appears to be due to greater longevity rather than early diagnosis. Using generally accepted measures of the value of a life, they conclude that the benefits of additional health spending outweigh the costs by a factor of 4:1 or higher. The latter calculation does not consider QALYs (quality adjusted life years) and so may be overstated. The authors acknowledge that other nations may do a better job of cancer prevention, so that their overall approach to cancer may be superior to that in the U.S., but they can find no evidence of this one way or another.
Philipson’s study suggests that U.S. healthcare consumers may get a substantial bang for their higher bucks. Maybe the U.S. system is not so inefficient after all. What about efficiency within the U.S. system? Some providers are far more expensive than others. Is the higher cost worth it? A new study by a team led by MIT economist Joseph Doyle, and released as an NBER Working Paper, suggests that you may get what you pay for within the United States. Doyle and his colleagues ask whether higher cost hospitals in the United States achieve better outcomes than lower cost hospitals. It is not easy to answer this question, because higher cost hospitals may admit more severely ill patients. This results in a statistical problem known as selection bias that is difficult to eliminate with available severity measures.