Impact of Donor Age on Graft Failure After Deceased Donor Liver Transplantation by Donor-Recipient Sex Combinations: An Analysis of the UNOS OPTN Database.

Sex disparity has been highlighted in personalized medicine for various human diseases including acute/chronic liver diseases. In the transplant community, greater graft failure risk in female-to-male liver transplantation (LT) has been repeatedly reported, and a recent study in living donor LT reported that the inferiority of female-to-male LT is shown only when donor age is ≤40 y. We aimed to analyze the United Network for Organ Sharing (UNOS) database to test if the poorer outcome of female-to-male LT changes by donor age of 40 y in deceased donor LT, as shown in living donor LT.