Results 21 to 30 of about 487,906 (252)

Extension of Cox Proportional Hazard Model for Estimation of Interrelated Age-Period-Cohort Effects on Cancer Survival

open access: yesCancer Informatics, 2011
In the frame of the Cox proportional hazard (PH) model, a novel two-step procedure for estimating age-period-cohort (APC) effects on the hazard function of death from cancer was developed. In the first step, the procedure estimates the influence of joint
Tengiz Mdzinarishvili   +3 more
doaj   +2 more sources

Survival time prediction by integrating cox proportional hazards network and distribution function network

open access: yesBMC Bioinformatics, 2021
Background The Cox proportional hazards model is commonly used to predict hazard ratio, which is the risk or probability of occurrence of an event of interest.
Eu-Tteum Baek   +6 more
doaj   +1 more source

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

ANALISIS LAJU KESEMBUHAN PASIEN DEMAM BERDARAH DENGUE DENGAN MENGGUNAKAN MODEL REGRESI COX PROPORTIONAL HAZARD

open access: yesJurnal Matematika UNAND, 2020
Demam Berdarah Dengue (DBD) merupakan salah satu penyakit berbahaya dan bisa meyebabkan kematian. Untuk mengurangi angka kematian akibat demam berdarah dengue, maka penelitian ini akan memodelkan waktu survival dengan studi kasus pada pasien demam ...
FITRI AULIA   +2 more
doaj   +1 more source

Statistical models for the analysis of skewed healthcare cost data: A simulation study [PDF]

open access: yes, 2015
Skewed data is the main issue in statistical models in healthcare costs. Data transformation is a conventional method to decrease skewness, but there are some disadvantages.
Angali, Kambiz Ahmadi   +2 more
core   +1 more source

Survival analysis in clinical trials: Basics and must know areas

open access: yesPerspectives in Clinical Research, 2011
Many clinical trials involve following patients for a long time. The primary event of interest in those studies is death, relapse, adverse drug reaction or development of a new disease.
Ritesh Singh, Keshab Mukhopadhyay
doaj   +1 more source

Particle Swarm Optimization for Penalize cox models in long-term prediction of breast cancer data

open access: yesIraqi Journal for Computer Science and Mathematics, 2023
The particle swarm optimization algorithm (PSO) was applied to penalize the Cox model for predicting long-term outcomes of breast cancer patients.
Ehab Abbas, Basad Al-Sarray
doaj   +1 more source

Model Cox Extended Untuk Mengatasi Nonproportional Hazard Pada Kejadian Bersama [PDF]

open access: yes, 2016
Model Cox extended merupakan modifikasi dari model Cox proportional hazard ketika asumsi proportional hazard tidak dipenuhi. Penelitian ini bertujuan untuk menjelaskan prosedur pembentukan model Cox extended pada kejadian bersama dan penerapannya pada ...
Kusumawati, R. (Rosita)   +1 more
core   +3 more sources

A Federated Cox Model with Non-proportional Hazards

open access: yes, 2022
Recent research has shown the potential for neural networks to improve upon classical survival models such as the Cox model, which is widely used in clinical practice. Neural networks, however, typically rely on data that are centrally available, whereas healthcare data are frequently held in secure silos.
D. Kai Zhang   +2 more
openaire   +3 more sources

A novel 14-gene signature for overall survival in lung adenocarcinoma based on the Bayesian hierarchical Cox proportional hazards model

open access: yesScientific Reports, 2022
There have been few investigations of cancer prognosis models based on Bayesian hierarchical models. In this study, we used a novel Bayesian method to screen mRNAs and estimate the effects of mRNAs on the prognosis of patients with lung adenocarcinoma ...
Na Sun   +5 more
semanticscholar   +1 more source

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