Tree-augmented Cox proportional hazards models
Abbreviated Journal Title
BIC; censored survival times; Cox proportional hazards models; survival; trees; CORONARY HEART-DISEASE; STRUCTURED SURVIVAL ANALYSIS; WESTERN; COLLABORATIVE GROUP; FOLLOW-UP EXPERIENCE; REGRESSION; RESIDUALS; MORTALITY; GOODNESS; TESTS; Mathematical & Computational Biology; Statistics & Probability
We study a hybrid model that combines Cox proportional hazards regression with tree-structured modeling. The main idea is to use step functions, provided by a tree structure, to 'augment' Cox (1972) proportional hazards models. The proposed model not only provides a natural assessment of the adequacy of the Cox proportional hazards model but also improves its model fitting without loss of interpretability. Both simulations and an empirical example are provided to illustrate the use of the proposed method.
"Tree-augmented Cox proportional hazards models" (2005). Faculty Bibliography 2000s. 5702.