Wednesday, October 21, 2009

Lying with Statistics

The Wall Street Journal has a series of articles, written by Carl Bialik, whose column is called "The Numbers Guy." He has taken on debunking widely-cited "statistics" that are actually bogus. I recommend these columns to you.

His most recent article looks at the oft quoted "finding" that the U.S. ranks 37th in the world in health care. His evaluation:
This ranking stands out as particularly misleading. It is based on a report released nearly a decade ago by the World Health Organization and relies on statistics that are even older and incomplete.
To understand why the statistic is problematic, check this out:
The U.S. actually ranked a lot higher. Specifically, it placed 15th overall, based on its performance in the five criteria. (snip) The WHO took the additional step of adjusting for national health expenditures per capita, to calculate each country's health-care bang for its bucks. Because the U.S. ranked first in spending, that adjustment pushed its ranking down to 37th.
Bialik concludes:
High spending rates pushed the ranking down but didn't degrade the quality of care.
In other words, we spend a lot on health care but get darn good care. Add in the fact that we are a nation with something like 12 million illegal aliens trying not to be noticed and thus not getting treatment until very sick. We also coexist with who knows how many hundreds of thousands of individuals who refuse medical treatment for religious reasons. Both of these groups make our health outcome statistics worse.

My guess: we do very well in comparison with other nations. Next time you hear politicians quote that "ranks 37th" statistic, you'll know they are lying and not just because their lips are moving.