TABLE 4.

Comparison of minor allele frequencies in study subjects by race

Enzyme Gene Variant	European-Americans (N = 53)	African-Americans (N = 41)	P valuea
UGT1A rs8330 C/G	0.21	0.51	<0.001
UGT1A1 (TA)N=5or6/7or8	0.37	0.40	0.47
UGT1A6*2 rs6759892; rs2070959; rs1105879	0.42	0.30	0.02
UGT1A9 rs6714486 T/A	0.05	0.14	0.007
UGT2B15*2 rs1902023 T/G	0.50	0.44	0.21
SULT1A1*2 rs9282861 G/A	0.36	0.28	0.07
CYP2E1*1D 6->8 repeats	0.04	0.27	<0.001
CYP2E1*4 rs6413419 G/A	0.01	0.16	<0.001
CYP3A5*3 rs776746 A/G	0.94	0.38	<0.001

^aχ² test.