Gender, Race and Disease Etiology Predict De Novo Malignancy Risk following Liver Transplantation: Insights for Future Individualized Cancer Screening Guidance

AbstractBackgroundMalignancy after liver transplant (LT) is a leading cause of mortality, but data is limited. The aim of this study was to identify patients at higher risk for de novo malignancies after LT in a large multicenter database.MethodsThe Scientific Registry of Transplant Recipients database comprising all 108,412 liver transplant recipients across the U.S. between 1987 and March 2015 was analyzed with a median follow-up of 6.95 years. Potential risk factors for malignancies after LT were assessed using Cox regression analysis for the outcome of time to first malignancy.ResultsMean age 51.9 ± 10.8 years, 64.6% male, 74.5% Caucasian, and 15.8% with previous malignancy. Malignancies during follow-up were 4,483 (41.3%) skin, 1,519 (14.0%) hematologic, and 4,842 (44.7%) solid organ. The 10-year probability of de novo malignancy was 11.5% (11.3-11.8%). On multivariable analysis, age by decade (HR 1.52; p

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