US diabetics are [ three times as likely to get a leg amputated if they are black, than if they are white ]( http://www.businessweek.com/articles/2014-10-14/diabetes-what-explains-the-higher-rate-of-amputations-for-blacks ) . It is not clear why, but it has to be due to prejudice one way or another.
Ссылка: https://stallman.org/archives/2014-jul-oct.html#16_October_2014_%28Rates_of_amputations_for_US_diabetics%29