Table 2. UGT1A1*28 genotypes and bilirubin levels (μmol l−1) prior to irinotecan administration and the highest value during therapy.
Genotypea | N | Bilirubin premean (range) | Bilirubin higher mean (range) | P* |
---|---|---|---|---|
6/6 | 40 | 8.3 (4–22) | 9.9 (4–25) | 0.001 |
6/7 | 45 | 8.7 (4–18) | 13 (5–37) | 0.001 |
7/7 | 10 | 15 (6–28) | 22 (6–65) | 0.1 |
P | — | 0.001 | 0.001 |
Symbols of (6/6), (6/7) and (7/7) denote homozygous absence of the variant allele, heterozygous, and homozygous for the variant allele, respectively. P=Significance of comparisons of bilirubin levels between genotypes. P*=Significance of comparisons of bilirubin levels pre- and postchemotherapy.