Tree-augmented Cox proportional hazards models
Copyright policy )Tree-augmented Cox proportional hazards models
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.
- University of California, Davis United States
- University of Central Florida United States
Male, Biometry, Censored data models, STRUCTURED SURVIVAL ANALYSIS, Statistics & Probability, CORONARY HEART-DISEASE, survival, censored survival times, WESTERN, California, Applications of statistics to biology and medical sciences; meta analysis, FOLLOW-UP EXPERIENCE, REGRESSION, BIC, Humans, Prospective Studies, Censored survival times, Proportional Hazards Models, Models, Statistical, Western Collaborative Group Study, MORTALITY, RESIDUALS, trees, Middle Aged, Cox proportional hazards models, Survival Analysis, Survival trees, Time series, auto-correlation, regression, etc. in statistics (GARCH), Cardiovascular Diseases, COLLABORATIVE GROUP, TESTS, Mathematical & Computational Biology, Monte Carlo Method, GOODNESS, cardiovascular epidemiology
Male, Biometry, Censored data models, STRUCTURED SURVIVAL ANALYSIS, Statistics & Probability, CORONARY HEART-DISEASE, survival, censored survival times, WESTERN, California, Applications of statistics to biology and medical sciences; meta analysis, FOLLOW-UP EXPERIENCE, REGRESSION, BIC, Humans, Prospective Studies, Censored survival times, Proportional Hazards Models, Models, Statistical, Western Collaborative Group Study, MORTALITY, RESIDUALS, trees, Middle Aged, Cox proportional hazards models, Survival Analysis, Survival trees, Time series, auto-correlation, regression, etc. in statistics (GARCH), Cardiovascular Diseases, COLLABORATIVE GROUP, TESTS, Mathematical & Computational Biology, Monte Carlo Method, GOODNESS, cardiovascular epidemiology
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