Thursday, May 31, 2012

Friday, May 18, 2012


Blood Types and the Population

O positive is the most common blood type. Not all ethnic groups have the same mix of these blood types. Hispanic people, for example, have a relatively high number of O’s, while Asian people have a relatively high number of B’s. The mix of the different blood types in the U.S. population is:

 
Caucasians
African American
Hispanic
Asian
O +
37%
47%
53%
39%
O -
8%
4%
4%
1%
A +
33%
24%
29%
27%
A -
7%
2%
2%
0.5%
B +
9%
18%
9%
25%
B -
2%
1%
1%
0.4%
AB +
3%
4%
2%
7%
AB -
1%
0.3%
0.2%
0.1%