Results 11 to 20 of about 748,596 (376)

Proportional hazards models with continuous marks

open access: yesThe Annals of Statistics, 2009
For time-to-event data with finitely many competing risks, the proportional hazards model has been a popular tool for relating the cause-specific outcomes to covariates [Prentice et al. Biometrics 34 (1978) 541--554]. This article studies an extension of this approach to allow a continuum of competing risks, in which the cause of failure is replaced by
Sun, Yanqing   +2 more
openaire   +6 more sources

Nonparametric Regression in Proportional Hazards Models

open access: diamondJOURNAL OF THE JAPAN STATISTICAL SOCIETY, 2004
Summary: \textit{J. Fan} et al. [Ann. Stat. 25, No. 4, 1661--1690 (1997; Zbl 0890.62023)] considered two kinds of nonparametric estimators of the effects of the covariates in proportional hazards models. One of them has no parametric assumption on the baseline hazard function and is based on the integration of the estimated first order derivative of ...
Toshio Honda
openaire   +4 more sources

Pain and mortality among older adults in Korea [PDF]

open access: yesEpidemiology and Health, 2021
OBJECTIVES With the increasing elderly population with chronic disease, understanding pain and designing appropriate policy interventions to it have become crucial.
Chiil Song, Wankyo Chung
doaj   +1 more source

Robust inference for univariate proportional hazards frailty regression models [PDF]

open access: bronze, 2004
We consider a class of semiparametric regression models which are one-parameter extensions of the Cox [J. Roy. Statist. Soc. Ser. B 34 (1972) 187-220] model for right-censored univariate failure times.
Michael R. Kosorok   +2 more
openalex   +4 more sources

Mitigating Disparities in Prostate Cancer Survival Prediction Through Fairness‐Aware Machine Learning Models [PDF]

open access: yesCancer Medicine
Purpose Prediction models can contribute to disparities in care by performing unequally across demographic groups. While fairness‐aware methods have been explored for binary outcomes, applications to survival analysis remain limited.
Hyungrok Do   +3 more
doaj   +2 more sources

Sparse estimation of Cox proportional hazards models via approximated information criteria. [PDF]

open access: yesBiometrics, 2016
We propose a new sparse estimation method for Cox (1972) proportional hazards models by optimizing an approximated information criterion. The main idea involves approximation of the inline image norm with a continuous or smooth unit dent function.
Su X, Wijayasinghe CS, Fan J, Zhang Y.
europepmc   +3 more sources

Two-Level Proportional Hazards Models [PDF]

open access: yesBiometrics, 2002
We extend the proportional hazards model to a two-level model with a random intercept term and random coefficients. The parameters in the multilevel model are estimated by a combination of EM and Newton-Raphson algorithms. Even for samples of 50 groups, this method produces estimators of the fixed effects coefficients that are approximately unbiased ...
Maples, Jerry J.   +2 more
openaire   +4 more sources

Carotid Intraplaque Neovascularization and Future Vascular Events in Patients With Asymptomatic Carotid Stenosis

open access: yesFrontiers in Pharmacology, 2022
Objective: Intraplaque neovascularization is a marker of plaque vulnerability and is used to predict the risk of future vascular events in patients with symptomatic carotid stenosis; however, its association with asymptomatic carotid stenosis has not ...
Liuping Cui   +10 more
doaj   +1 more source

Identification of a competing risks model with unknown transformations of latent failure times [PDF]

open access: yes, 2005
This paper is concerned with identification of a competing risks model with unknown transformations of latent failure times. The model in this paper includes, as special cases, competing risks versions of proportional hazards, mixed proportional ...
Berwanger, Dietmar   +4 more
core   +7 more sources

Does Atrial Fibrillation Increase the Risk of New Onset Myocardial Infarction? [PDF]

open access: yesZhongguo quanke yixue, 2022
Background Atrial fibrillation is the most obvious arrhythmia in medical practice. Atrial fibrillation has been listed as one of the eight fastest-growing causes of death since 1990.
Yujing HAO, Jie YU, Quanle HAN, Ruiying MAO, Jing YU, Lihua SONG, Shouling WU
doaj   +1 more source

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