Table 1.

Patient’s combination genotype distribution

Genotype		Group	n
UGT1A1*28	UGT1A1*6
TA6/6	G/G	Wild-type	38
TA6/6	G/A	Heterozygous variant	18
TA6/7	G/G	Heterozygous variant	7
TA6/7	G/A	Two sites heterozygous variants	4

Abbreviation: UGT, uridine diphosphate glucuronosyltransferase.