Results 91 to 100 of about 14,848,273 (189)

Fitting the Cox proportional hazards model to big data

open access: yesBiometrics
AbstractThe semiparametric Cox proportional hazards model, together with the partial likelihood principle, has been widely used to study the effects of potentially time-dependent covariates on a possibly censored event time. We propose a computationally efficient method for fitting the Cox model to big data involving millions of study subjects ...
Jianqiao Wang, Donglin Zeng, Dan-Yu Lin
openaire   +2 more sources

A Simple Test for the Absence of Covariate Dependence in Hazard Regression Models [PDF]

open access: yes
This paper extends commonly used tests for equality of hazard rates in a two-sample or k-sample setup to a situation where the covariate under study is continuous.
Bhattacharjee, Arnab
core  

Cox proportional hazard regression model analysis.

open access: yes, 2014
Cox proportional hazard regression model analysis.
Yi Zhang (9093)   +12 more
core   +1 more source

Testing for Proportional Hazards with Unrestricted Univariate Unobserved Heterogeneity [PDF]

open access: yes, 2009
We develop tests of the proportional hazards assumption, with respect to a continuous covariate, in the presence of unobserved heterogeneity with unknown distribution at the individual observation level.
Bhattacharjee, Arnab   +1 more
core  

simPH: An R package for illustrating estimates from cox proportional hazard models including for interactive and nonlinear effects

open access: yes, 2015
The R package simPH provides tools for effectively communicating results from Cox proportional hazard (PH) models, including models with interactive and nonlinear effects. The Cox (PH) model is a popular tool for examining event data. However, previously
Christopher Gandrud
semanticscholar   +1 more source

Unemployment Duration and its Determinants Using Cox Proportional Hazard Model Evidence from Yazd City during 2007-2010 [PDF]

open access: yesفصلنامه پژوهش‌های اقتصادی ایران, 2012
The following research attempts to study the effect of personal characteristics on unemployment duration in Yazd city during 2007-2010. The Cox proportional hazard model is used to test the hypotheses in this study.
Mohammad Ali Feizpour   +1 more
doaj  

Models of Firm Dynamics and the Hazard Rate of Exits: Reconciling Theory and Evidence using Hazard Regression Models [PDF]

open access: yes
This paper considers empirical work relating to models of firm dynamics. We show that a hazard regression model for firm exits, with a modification to accommodate age-varying covariate effects, provides an empirical framework accommodating many of the ...
Arnab Bhattacharjee
core  

A proportional hazards model of bank failure: an examination of its usefulness as an early warning tool [PDF]

open access: yes
An explanation of how a Cox proportional hazards model can be used to identify both failed and healthy banks with a high degree of accuracy using a relatively small set of publicly available data.Bank ...
Gary Whalen
core  

Cox proportional hazard model for clinical samples.

open access: yes, 2015
Age was evaluated as a continuous variable.Cox proportional hazard model for clinical samples.
Koichiro Tsugawa (697601)   +12 more
core   +1 more source

The results of the adjusted Cox proportional hazard model.

open access: yes, 2020
The results of the adjusted Cox proportional hazard model.
Fred M. Ssewamala (8207205)   +14 more
core   +1 more source

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