Prognostic value of ABO blood group in patients with nonseminomatous testicular cancer who treated with autologous stem cell transplantation

OS and PFS were superior in O blood group than other blood groups, however the difference was not reached statistical significance. In the literature, there is no study that focused on the relationship between stem cell transplantation and blood groups. ABO blood groups are the phenotype of a person's genotype and may reflect differences in the individual's immune mechanisms. However, due to small number of cases and heterogeneity of the group, the results and the strength of the study may have affected negatively. So, the prognostic importance of ABO blood groups can be shown with multi-center studies that performed with larger number of cases.