FIGURE 3.

ABCB1 haplotype frequencies by Race. Note the distributions of ABCB1 wild-type CGC compared to variants. The frequency of the major variant is TTT is depicted with a frequency of 39.8% in Whites compared to 8.9% in Blacks. There were significant overall differences (p < 0.001) for haplotype frequencies between Whites and Blacks attributed to CGC and TTT (brackets). This finding is consistent with previously evaluated populations (29–31). No differences in haplotype frequencies are found between sexes. Figure from Venuto et al. (2015).