The registry really needs more minority donors
While a perfect HLA match is not dependent upon race, people of similar ancestry generally match better. People that are not Caucasian or are of mixed descent have the hardest time finding their life-saving match from the registry. Also, when called to be a donor, minority donors are more likely to back out or not be located. Bellow is a more clear breakdown of the statistics. I also conducted a survey and found out some interesting patterns between races in college students. Check out my findings regarding ethnic groups.