RT Journal Article T1 Mortality after Transplantation for Hepatocellular Carcinoma: A Study from the European Liver Transplant Registry. A1 Pommergaard, Hans-Christian A1 Rostved, Andreas Arendtsen A1 Adam, René A1 Rasmussen, Allan A1 Salizzoni, Mauro A1 Bravo, Miguel Angel Gómez A1 Cherqui, Daniel A1 De Simone, Paolo A1 Houssel-Debry, Pauline A1 Mazzaferro, Vincenzo A1 Soubrane, Olivier A1 García-Valdecasas, Juan Carlos A1 Prous, Joan Fabregat A1 Pinna, Antonio D A1 O'Grady, John A1 Karam, Vincent A1 Duvoux, Christophe A1 Thygesen, Lau Caspar K1 Cirrhosis K1 Hepatocellular carcinoma K1 Liver transplantation K1 Non-cirrhotic liver K1 Prognosis K1 Propensity score calibration K1 Unmeasured confounding AB Prognosis after liver transplantation differs between hepatocellular carcinoma (HCC) arising in cirrhotic and non-cirrhotic livers and aetiology is poorly understood. The aim was to investigate differences in mortality after liver transplantation between these patients. We included patients from the European Liver Transplant Registry transplanted due to HCC from 1990 to November 2016 and compared cirrhotic and non-cirrhotic patients using propensity score (PS) calibration of Cox regression estimates to adjust for unmeasured confounding. We included 22,787 patients, of whom 96.5% had cirrhosis. In the unadjusted analysis, non-cirrhotic patients had an increased risk of overall mortality with a hazard ratio (HR) of 1.37 (95% confidence interval [CI] 1.23-1.52). However, the HR approached unity with increasing adjustment and was 1.11 (95% CI 0.99-1.25) when adjusted for unmeasured confounding. Unadjusted, non-cirrhotic patients had an increased risk of HCC-specific mortality (HR 2.62, 95% CI 2.21-3.12). After adjustment for unmeasured confounding, the risk remained significantly increased (HR 1.62, 95% CI 1.31-2.00). Using PS calibration, we showed that HCC in non-cirrhotic liver has similar overall mortality, but higher HCC-specific mortality. This may be a result of a more aggressive cancer form in the non-cirrhotic liver as higher mortality could not be explained by tumour characteristics or other prognostic variables. SN 2235-1795 YR 2020 FD 2020-05-12 LK http://hdl.handle.net/10668/16356 UL http://hdl.handle.net/10668/16356 LA en DS RISalud RD Apr 7, 2025