UGT1A1 and anemia (phenotype): Table 7 shows that there were significant differences in the aspects of anemia (EMs 4.2% vs. IMs 19.7% and PMs 23.5%, p = 0.011) and FN (EMs 7.0% vs. IMs 31.8% and PMs 29.4%, p = 0.001) among the three groups of UGT1A1 phenotypes. The UGT1A1 IM and PM groups tended to be susceptible to NP grade 4, although the differences were not statistically significant.