Results 21 to 30 of about 402,477 (353)

Survival analysis-part 2: Cox proportional hazards model. [PDF]

open access: yesIndian J Thorac Cardiovasc Surg, 2021
Deo SV, Deo V, Sundaram V.
europepmc   +2 more sources

Generating Survival Times to Simulate Cox Proportional Hazards Models [PDF]

open access: yesStatistics in Medicine, 2003
This paper discusses techniques to generate survival times for simulation studies regarding Cox proportional hazards models. In linear regression models, the response variable is directly connected with the considered covariates, the regression ...
Augustin, Thomas   +2 more
core   +6 more sources

Testing Linear and Nonlinear Hypotheses in a Cox Proportional Hazards Model with Errors in Covariates

open access: diamondLithuanian Journal of Statistics, 2019
We investigate linear and nonlinear hypotheses testing in a Cox proportional hazards model for right-censored survival data when the covariates are subject to measurement errors. In Kukush and Chernova (2018) [Theor. Probability and Math. Statist.
Oksana Chernova, Alexander Kukush
doaj   +3 more sources

A flexible alternative to the Cox proportional hazards model for assessing the prognostic accuracy of hospice patient survival. [PDF]

open access: yesPLoS ONE, 2012
Prognostic models are often used to estimate the length of patient survival. The Cox proportional hazards model has traditionally been applied to assess the accuracy of prognostic models.
Branko Miladinovic   +5 more
doaj   +2 more sources

Estimation in a Cox Proportional Hazards Cure Model [PDF]

open access: greenBiometrics, 2000
Summary.Some failure time data come from a population that consists of some subjects who are susceptible to and others who are nonsusceptible to the event of interest. The data typically have heavy censoring at the end of the follow‐up period, and a standard survival analysis would not always be appropriate.
Judy P. Sy, Jeremy M. G. Taylor
openalex   +6 more sources

Augmenting the logrank test in the design of clinical trials in which non-proportional hazards of the treatment effect may be anticipated [PDF]

open access: yesBMC Medical Research Methodology, 2016
Background Most randomized controlled trials with a time-to-event outcome are designed assuming proportional hazards (PH) of the treatment effect. The sample size calculation is based on a logrank test.
Patrick Royston, Mahesh K.B. Parmar
doaj   +5 more sources

Using Wavelet Shrinkage in the Cox Proportional Hazards Regression model (simulation study) [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2022
The proposed method in this paper dealt with the problem of data contamination in the Cox Proportional Hazards Regression model (CPHRM) by using Wavelet Shrinkage to de-noise data, calculating the discrete wavelet transformation coefficients for wavelets
taha ali, Jwana Rostam Qadir
doaj   +1 more source

Does the Tax Cuts Policy Lower Firm Survival Risk? Evidence from China [PDF]

open access: yesE3S Web of Conferences, 2023
This paper examines the effect of tax cuts policy on firm survival risk. We analyze a panel data of China’s listed companies over the period 20082021 based on two different techniques: Kaplan-Meier survival estimator and the Cox proportional hazards ...
Wang Hong   +3 more
doaj   +1 more source

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