Results 31 to 40 of about 281,063 (279)

Bayesian random threshold estimation in a Cox proportional hazards cure model [PDF]

open access: yes, 2013
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/102705/1/sim5964 ...
Bellile, Emily L.   +3 more
core   +1 more source

Application of random survival forests in understanding the determinants of under-five child mortality in Uganda in the presence of covariates that satisfy the proportional and non-proportional hazards assumption

open access: yesBMC Research Notes, 2017
Background Uganda just like any other Sub-Saharan African country, has a high under-five child mortality rate. To inform policy on intervention strategies, sound statistical methods are required to critically identify factors strongly associated with ...
Justine B. Nasejje, Henry Mwambi
doaj   +1 more source

Data generation for the Cox proportional hazards model with time-dependent covariates: A method for medical researchers [PDF]

open access: yes, 2013
The proliferation of longitudinal studies has increased the importance of statistical methods for time-to-event data that can incorporate time-dependent covariates. The Cox proportional hazards model is one such method that is widely used.
Hendry, David J.
core   +1 more source

Testing proportional hazards for specified covariates

open access: yesModern Stochastics: Theory and Applications, 2019
Tests for proportional hazards assumption concerning specified covariates or groups of covariates are proposed. The class of alternatives is wide: log-hazard rates under different values of covariates may cross, approach, go away.
Vilijandas Bagdonavičius   +1 more
doaj   +1 more source

Hepatic resection for metastatic colorectal adenocarcinoma: A proposal of a prognostic scoring system [PDF]

open access: yes, 1999
Background: Hepatic resection for metastatic colorectal cancer provides excellent longterm results in a substantial proportion of patients. Although various prognostic risk factors have been identified, there has been no dependable staging or prognostic ...
Bonham, AC   +9 more
core   +1 more source

Survival time prediction by integrating cox proportional hazards network and distribution function network

open access: yesBMC Bioinformatics, 2021
Background The Cox proportional hazards model is commonly used to predict hazard ratio, which is the risk or probability of occurrence of an event of interest.
Eu-Tteum Baek   +6 more
doaj   +1 more source

PENERAPAN REGRESI COX PROPORTIONAL HAZARD UNTUK MENDUGA FAKTOR-FAKTOR YANG MEMENGARUHI LAMA MENCARI KERJA

open access: yesE-Jurnal Matematika, 2013
Survival analysis is a statistical method that accommodates the collection of censored data. One of popular method in survival analysis is the Cox Proportional Hazard Regression.
I GEDE ARI SUDANA   +2 more
doaj   +1 more source

Genome-wide survival analysis of age at onset of alcohol dependence in extended high-risk COGA families. [PDF]

open access: yes, 2014
BackgroundThe age at onset of alcohol dependence (AD) is a critical moderator of genetic associations for alcohol dependence. The present study evaluated whether single nucleotide polymorphisms (SNPs) can influence the age at onset of AD in large high ...
Agrawal, Arpana   +23 more
core   +1 more source

Asymptotic normality of corrected estimator in Cox proportional hazards model with measurement error

open access: yesModern Stochastics: Theory and Applications, 2014
Cox proportional hazards model is considered. In Kukush et al. (2011), Journal of Statistical Research, Vol. 45, No. 2, 77–94 simultaneous estimators $\lambda _{n}(\cdot )$ and $\beta _{n}$ of baseline hazard rate $\lambda (\cdot )$ and regression ...
C. Chimisov, A. Kukush
doaj   +1 more source

An Online Updating Approach for Testing the Proportional Hazards Assumption with Streams of Big Survival Data

open access: yes, 2018
The Cox model, which remains as the first choice in analyzing time-to-event data even for large datasets, relies on the proportional hazards assumption. When the data size exceeds the computer memory, the standard statistics for testing the proportional ...
Schifano, Elizabeth D.   +3 more
core   +1 more source

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