OPTIMIZING DONOR-RECIPIENT MATCHING TO IMPROVE SURVIVAL AFTER REGISTRATION ON THE WAITING LIST FOR LIVER TRANSPLANTATION: the OPTIMATCH LT study FRESH-PEF73352-en PIERRE-ANDRE NATELLA OPTIMIZING DONOR-RECIPIENT MATCHING TO IMPROVE SURVIVAL AFTER REGISTRATION ON THE WAITING LIST FOR LIVER TRANSPLANTATION: the OPTIMATCH LT study OPTIMATCH LT FRESH-PEF73352-en 73352 FRESH-PEF73352 Cyrille FERAY ASSISTANCE PUBLIQUE HOPITAUX DE PARIS (AP-HP) Epidemiology France Portal (PEF) MINISTERE DU TRAVAIL, DE LA SANTE, DES SOLIDARITES ET DES FAMILLES null Cyrille;FERAY Liver transplantation Allocation process extended-criteria donors Survival Hepatology The main objective of this study is to design, in an intent-to-transplant approach, liver graft allocation models to optimize the ECG-recipient matching and to provide a decision-making algorithm for ECG utilization. Such models aim at improving the efficiency of the French system of allocation and to limit the consequences or organ shortage null France Individuals General population Male Female Young Adult (19 to 24 years) Adult (25 to 44 years) Middle Aged (45 to 64 years) Aged (65 to 79 years) Aged, 80 and over (80 years and more) Liver transplant candidates : All adult LT candidates listed on the French wait list between 2009 and 2014 and followed prospectively by the mean yearly follow-up under the control of ABM. - Donors : all adults donors registered over the same 2009-2014 period, including donors whose livers were procured and transplanted, whose liver were procured and discarded, and donors in whom liver was not harvested. Clinical data Biological data Other [1000-10000[ individuals Converting or copying information into a structured record Medico-administrative database Observational Study Observational Study Cohort study For the whole period 2009-2014: 9500 candidates are expected Unknown Metadata-only access The sponsor, AP-HP, is the owner of the data. The data cannot be used or disclosed to a third party without its prior permission. Access not yet planned