Results 21 to 30 of about 15,550,459 (307)
On model specification and selection of the Cox proportional hazards model [PDF]
Statistics in Medicine, 2013 Prognosis plays a pivotal role in patient management and trial design. A useful prognostic model should correctly identify important risk factors and estimate their effects. In this article, we discuss several challenges in selecting prognostic factors and estimating their effects using the Cox proportional hazards model.
Lin, Chen-Yen, Halabi, Susan
openaire +3 more sources
Gradient lasso for Cox proportional hazards model [PDF]
Bioinformatics, 2009 AbstractMotivation: There has been an increasing interest in expressing a survival phenotype (e.g. time to cancer recurrence or death) or its distribution in terms of a subset of the expression data of a subset of genes. Due to high dimensionality of gene expression data, however, there is a serious problem of collinearity in fitting a prediction model,
Insuk Sohn +3 more
openaire +2 more sources
Cox-Snell residual to check proportional hazard model fitness.
, 2022 Cox-Snell residual to check proportional hazard model fitness.
Andamlak Eskale Mebratie (12937104) +3 more
core +1 more source
Tree-augmented Cox proportional hazards models [PDF]
Biostatistics, 2005 We study a hybrid model that combines Cox proportional hazards regression with tree-structured modeling. The main idea is to use step functions, provided by a tree structure, to 'augment' Cox (1972) proportional hazards models. The proposed model not only provides a natural assessment of the adequacy of the Cox proportional hazards model but also ...
Su, Xiaogang, Tsai, Chih Ling
openaire +4 more sources
Jurnal 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
Cox-proportional hazard model for post-procedure mortality.
, 2023 Cox-proportional hazard model for post-procedure mortality.
Ching-Hu Chung (1690051) +3 more
core +1 more source
Stepwise cox regression analysis in SPSS
Cancer 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
Survival analysis in clinical trials: Basics and must know areas
Perspectives 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
Cox proportional hazard model for overall survival.
, 2022 Cox proportional hazard model for overall survival.
Atsuhiko Uno (3214665) +5 more
core +1 more source
BMC 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