Is the U.S. sicker than other countries? Part 2
Filed Under (Health Care) by Nolan Miller on Nov 5, 2009
A couple of weeks ago I wrote about how Americans may spend more on health care because we are sicker than those in other countries. A recent paper provides additional evidence on this point. (Thanks to the Economic Logic blog, which pointed out the paper.) The paper, by RAND Corporation researchers Pierre-Carl Michaud, Dana Goldman, Darius Lakdawalla, Adam Gailey and Yuhui Zheng, is entitled “International Differences in Longevity and Health and their Economic Consequences”, and it begins by noting that in 1975, life expectancy at age 50 was about the same in the U.S. and Europe. Since then, however, Europeans have gained more than Americans. In 2004, a typical 50 year old Eurpoean expected to live another 32.5 years, while his American counterpart expected to live only 31 more years. Next, they note that Americans appear worse on several health indicators than Europeans. For example, the U.S. looks worse than the group of Eurpean countries they study (Demnark, France, Germany, Greece, Italy, The Netherlands, Spain, Sweden) in terms of obesity, whether the person has ever smoked, heart disease, diabetes, stroke, lung disease, cancer, hypertension and disability. This leads to the main question of the paper: how much of the difference in life expectancy from age 50 is driven by these differences in health? If observed differences in health do not account for the difference in longevity, then it is possible that “‘being American’ an independent mortality risk factor, in the same way that being poor or being black increase risk above and beyond observed health.” This ‘being American’ effect could be due to shortcomings of our health care system relative to that of other countries.
The main finding of the paper is that, if Americans had the same baseline health status as the Europeans in the study, they would live about 1.2 years longer. So, differences in health status account for about 80% of the 1.5 year difference.
Of course, differences in health status at age 50 could, themselves, be a product of the health care system. So, it is not immediately clear from the Michaud et al. paper that Americans are genetically sicker or that we make behavioral choices (e.g., eat too much) that make us sicker. It could be that we get worse health care throughout our lives, and this leaves us sicker at age 50. I suspect that this is not the case, but it is certainly a possibility.
This reminded me of a paper I saw a few years ago by Daniel Polsky and others entitled “The Health Effects of Medicare for the Near-Elderly Uninsured.” The study found that if a person was basically in good health when they went on Medicare at age 65, Medicare helped to keep them that way. But, for those who were already in declining health, Medicare was not that effective. Now, if as the previous study showed, Americans have higher prevalence of chronic disease at age 50 than other countries, it may be that we, for whatever reason, enter the period of “declining health” earlier than Europeans do. If insurance (as proxied by Medicare) is more effective in maintaining good health than restoring one to good health once deterioration has begun, then this suggests that the place to focus our efforts if we want to close the longevity gap with Europe would be in increased prevention and disease management efforts in middle age.
Next week: does preventative care save money?



