Results 11 to 20 of about 851,409 (271)

Image Based Data Mining Using Per-voxel Cox Regression

open access: yesFrontiers in Oncology, 2020
Image Based Data Mining (IBDM) is a novel analysis technique allowing the interrogation of large amounts of routine radiotherapy data. Using this technique, unexpected correlations have been identified between dose close to the prostate and biochemical ...
Andrew Green   +11 more
doaj   +1 more source

Cox regression survival analysis with compositional covariates: application to modelling mortality risk from 24-h physical activity patterns [PDF]

open access: yes, 2020
Survival analysis is commonly conducted in medical and public health research to assess the association of an exposure or intervention with a hard end outcome such as mortality. The Cox (proportional hazards) regression model is probably the most popular
Chastin, S.F.M.   +4 more
core   +1 more source

Comparison of Cox proportional hazards regression and generalized Cox regression models applied in dementia risk prediction

open access: yesAlzheimer’s & Dementia: Translational Research & Clinical Interventions, 2020
Introduction The frequently used Cox regression applies two critical assumptions, which might not hold for all predictors. In this study, the results from a Cox regression model (CM) and a generalized Cox regression model (GCM) are compared. Methods Data
Jantje Goerdten   +2 more
doaj   +1 more source

Factors associated with methadone treatment duration: a Cox regression analysis. [PDF]

open access: yesPLoS ONE, 2015
This study examined retention rates and associated predictors of methadone maintenance treatment (MMT) duration among 128 newly admitted patients in Taiwan. A semi-structured questionnaire was used to obtain demographic and drug use history.
Chao-Kuang Lin   +4 more
doaj   +1 more source

Weighted Cox regression for the prediction of heterogeneous patient subgroups

open access: yesBMC Medical Informatics and Decision Making, 2021
Background An important task in clinical medicine is the construction of risk prediction models for specific subgroups of patients based on high-dimensional molecular measurements such as gene expression data.
Katrin Madjar, Jörg Rahnenführer
doaj   +1 more source

COX PROPORTIONAL HAZARD REGRESSION SURVIVAL ANALYSIS FOR TYPE 2 DIABETES MELITUS

open access: yesBarekeng, 2022
One of the most widely used methods of survival analysis is Cox proportional hazard regression. It is a semiparametric regression used to investigate the effects of a number of variables on the dependent variable based on survival time.
Umi Mahmudah   +4 more
doaj   +1 more source

Beyond first-order asymptotics for Cox regression [PDF]

open access: yes, 2015
To go beyond standard first-order asymptotics for Cox regression, we develop parametric bootstrap and second-order methods. In general, computation of $P$-values beyond first order requires more model specification than is required for the likelihood ...
Bellio, Ruggero, Pierce, Donald A.
core   +2 more sources

Stepwise cox regression analysis in SPSS

open access: yesCancer Research, Statistics, and Treatment, 2018
This article is a beginners' guide for performing Cox regression analysis in SPSS. The article provides practical steps toward performing Cox analysis and interpreting the output of SPSS for Cox regression analysis.
Sampada Dessai, Vijai Simha, Vijay Patil
doaj   +1 more source

Implementation of complex interactions in a Cox regression framework [PDF]

open access: yes, 2003
The standard Cox proportional hazards model has been extended by functionally describable interaction terms. The first of which are related to neural networks by adopting the idea of transforming sums of weighted covariables by means of a logistic ...
Müller, M., Ulm, Kurt
core   +2 more sources

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