More Than One Medical Student At UVA Believes Black People Don't Feel Pain

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70. Coagulation Rates - Are you sure

Everyone seems confident that this coagulation rate info is bogus.

For whatever reason many years ago when I worked in medical monitoring system development and was hanging out with doctors I got the strong impression that the coagulation rate difference was very real and significant.

So... a quick google search seems to indicate that this is not a strange non-truth.
The numbers seem real - and important.
In this study the issue is development of clots - which occurs due coagulation where it is not wanted.

http://phys.org/news/2010-08-african-americans-higher-blood-clots-drug-coated.html

For the study, researchers examined data on 7,236 patients who had stents, coated with clot-prevention drugs, implanted to prop open narrowing arteries. The drug-coated stents, also called drug-eluting stents, were implanted between mid-2003 and the end of 2008.

Even after considering other known risk factors — such as diabetes, hypertension and kidney problems — researchers found that African-Americans still experienced a higher rate of thrombosis or clotting.

"The bottom line is this is not just because this population is sicker or less compliant, but there is something else there that needs to be explored," said Ron Waksman, M.D., the study's lead author.

In the study, African-American patients were nearly three times as likely to experience clotting as non-African-American patients. African-Americans' clotting rates compared to non-African Americans were:

1.71 percent vs. 0.59 percent after 30 days;
2.25 percent vs. 0.79 percent at one year;
2.78 percent vs. 1.09 percent at two years; and
3.67 percent vs. 1.25 percent at three years.

The rate of death from all causes at three years was also higher among African-Americans, 24.9 percent vs. 13.1 percent in other races.