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. Author manuscript; available in PMC: 2013 May 1.
Published in final edited form as: Transfusion. 2011 Nov 1;52(5):1106–1111. doi: 10.1111/j.1537-2995.2011.03396.x

Table 3.

Allele frequencies of SLC44A2 in African Americans and Caucasians

African American *
Caucasian *
Allele n Population frequency
n Population frequency
Mean 95% CI Mean 95% CI
SLC44A2*1 449 93% 85% – <100% 155 83% 71% – 98%
SLC44A2*2 33 7% 5% – 10% 31 17% 11% – 25%
Total 482 186
*

Significant difference between African Americans and Caucasians (p<0.0001; Fisher’s exact test)

95% confidence interval calculated by Poisson distribution