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Using machine learning and an ensemble of methods to predict kidney transplant survival.

ABSTRACT: We used an ensemble of statistical methods to build a model that predicts kidney transplant survival and identifies important predictive variables. The proposed model achieved better performance, measured by Harrell's concordance index, than the Estimated Post Transplant Survival model used in the kidney allocation system in the U.S., and other models published recently in the literature. The model has a five-year concordance index of 0.724 (in comparison, the concordance index is 0.697 for the Estimated Post Transplant Survival model, the state of the art currently in use). It combines predictions from random survival forests with a Cox proportional hazards model. The rankings of importance for the model's variables differ by transplant recipient age. Better survival predictions could eventually lead to more efficient allocation of kidneys and improve patient outcomes.

SUBMITTER: Mark E 

PROVIDER: S-EPMC6326487 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Using machine learning and an ensemble of methods to predict kidney transplant survival.

Mark Ethan E   Goldsman David D   Gurbaxani Brian B   Keskinocak Pinar P   Sokol Joel J  

PloS one 20190109 1

We used an ensemble of statistical methods to build a model that predicts kidney transplant survival and identifies important predictive variables. The proposed model achieved better performance, measured by Harrell's concordance index, than the Estimated Post Transplant Survival model used in the kidney allocation system in the U.S., and other models published recently in the literature. The model has a five-year concordance index of 0.724 (in comparison, the concordance index is 0.697 for the  ...[more]

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