Results 121 to 130 of about 487,906 (252)

A Simulation Study on Competing Risks With Censored Data Using Cox Model [PDF]

open access: yes, 1999
A simulation study was performed to compare two regression methods for competing risks with censored data. The first method was the conventional Cox's proportional hazard regression model (Cox model).
Lukman, Iing
core  

"Multinational Companies, Technology Spillovers and Plant Survival: Evidence for Irish Manufacturing" [PDF]

open access: yes
This paper argues that multinational companies can impact positively on the survival of plants in the host country through technology spillovers. We study this effect empirically by estimating a Cox proportional hazard model on plant level data for Irish
Eric Strobl., Holger Gorg
core  

Determinants of under-five mortality in Zimbabwe: Evidence from the 2015–2016 Zimbabwe demographic Health Survey data

open access: yesWomen and Children Nursing
Background: Child mortality is an important measure of a population’s health status. It is included in the third sustainable development goal that aims to improve global health by reducing under-five mortality to at least as low as 25 per 1000 live ...
Elliot Mbunge   +7 more
doaj   +1 more source

Unobserved Heterogeneity in Multiple-Spell Multiple-States Duration Models [PDF]

open access: yes
In survival analysis a large literature using frailty models, or models with unobserved heterogeneity, exist. In the growing literate on multiple spell multiple states duration models, or multistate models, modeling this issue is only at its infant phase.
Bijwaard, Govert
core  

Association of inferior vena cava filter placement for venous thromboembolic disease and a contraindication to anticoagulation with 30-day mortality [PDF]

open access: yes, 2018
Importance: Despite the absence of data from randomized clinical trials, professional societies recommend inferior vena cava (IVC) filters for patients with venous thromboembolic disease (VTE) and a contraindication to anticoagulation therapy.
Brown, David L   +3 more
core   +1 more source

Survival prediction models for people living with HIV based on four machine learning models

open access: yesScientific Reports
Although antiretroviral therapy has prolonged the lifespan of people living with HIV, significant variations still exist in survival rates and risk factors among these people. This study compares the performance of the Cox proportional hazard models with
Qiong Cai   +6 more
doaj   +1 more source

Modelling the recovery of distressed firms on the Johannesburg Stock Exchange: a Cox proportional hazard model approach

open access: yesCogent Economics & Finance
The Johannesburg Stock Exchange has been experiencing high levels of delisting over the past decade, drawing attention to the effectiveness of the mechanisms used to promote the recovery of financially distressed firms.
Leonard Makuvaza   +3 more
doaj   +1 more source

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

The Impact of Private Participation on Disability Costs: Evidence from Chile [PDF]

open access: yes
Social security systems in many countries face problems of high and escalating disability costs. This paper analyzes how disability costs have been controlled in Chile.
Alejandra CoxEdwards   +2 more
core  

Estimation in Cox proportional hazards model with heteroscedastic errors in covariates

open access: yesModern Stochastics: Theory and Applications
Consistent estimators of the baseline hazard rate and the regression parameter are constructed in the Cox proportional hazards model with heteroscedastic measurement errors, assuming that the baseline hazard function belongs to a certain class of ...
Oksana Chernova
doaj   +1 more source

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