Results 11 to 20 of about 191,557 (214)

Detecting prognostic biomarkers of breast cancer by regularized Cox proportional hazards models [PDF]

open access: yesJournal of Translational Medicine, 2021
Background The successful identification of breast cancer (BRCA) prognostic biomarkers is essential for the strategic interference of BRCA patients.
Lingyu Li, Zhi-Ping Liu
doaj   +2 more sources

Efficient Post-Shrinkage Estimation Strategies in High-Dimensional Cox’s Proportional Hazards Models [PDF]

open access: yesEntropy
Regularization methods such as LASSO, adaptive LASSO, Elastic-Net, and SCAD are widely employed for variable selection in statistical modeling. However, these methods primarily focus on variables with strong effects while often overlooking weaker signals,
Syed Ejaz Ahmed   +2 more
doaj   +2 more sources

BHCox: Bayesian heredity-constrained Cox proportional hazards models for detecting gene-environment interactions [PDF]

open access: yesBMC Bioinformatics
Background Gene-environment (G × E) interactions play a critical role in understanding the etiology of diseases and exploring the factors that affect disease prognosis.
Na Sun   +6 more
doaj   +2 more sources

On hazard ratio estimators by proportional hazards models in matched-pair cohort studies [PDF]

open access: yesEmerging Themes in Epidemiology, 2017
Background In matched-pair cohort studies with censored events, the hazard ratio (HR) may be of main interest. However, it is lesser known in epidemiologic literature that the partial maximum likelihood estimator of a common HR conditional on matched ...
Tomohiro Shinozaki   +2 more
doaj   +2 more sources

Mediation Analysis with Survival Outcomes: Accelerated Failure Time Versus Proportional Hazards Models [PDF]

open access: yesFrontiers in Psychology, 2016
Objective: Survival time is an important type of outcome variable in treatment research. Currently, limited guidance is available regarding performing mediation analyses with survival outcomes, which generally do not have normally distributed errors, and
Lois A Gelfand   +3 more
doaj   +2 more sources

Pain and mortality among older adults in Korea [PDF]

open access: yesEpidemiology and Health, 2021
OBJECTIVES With the increasing elderly population with chronic disease, understanding pain and designing appropriate policy interventions to it have become crucial.
Chiil Song, Wankyo Chung
doaj   +1 more source

Carotid Intraplaque Neovascularization and Future Vascular Events in Patients With Asymptomatic Carotid Stenosis

open access: yesFrontiers in Pharmacology, 2022
Objective: Intraplaque neovascularization is a marker of plaque vulnerability and is used to predict the risk of future vascular events in patients with symptomatic carotid stenosis; however, its association with asymptomatic carotid stenosis has not ...
Liuping Cui   +10 more
doaj   +1 more source

The Southern European Atlantic Diet and all-cause mortality in older adults

open access: yesBMC Medicine, 2021
Background The Southern European Atlantic Diet (SEAD) is the traditional diet of Northern Portugal and North-Western Spain. Higher adherence to the SEAD has been associated with lower levels of some cardiovascular risk factors and reduced risk for ...
Adrián Carballo-Casla   +7 more
doaj   +1 more source

Does Atrial Fibrillation Increase the Risk of New Onset Myocardial Infarction? [PDF]

open access: yesZhongguo quanke yixue, 2022
Background Atrial fibrillation is the most obvious arrhythmia in medical practice. Atrial fibrillation has been listed as one of the eight fastest-growing causes of death since 1990.
Yujing HAO, Jie YU, Quanle HAN, Ruiying MAO, Jing YU, Lihua SONG, Shouling WU
doaj   +1 more source

Three-year Survival of Women with Breast Cancer in Basrah, Iraq

open access: yesOman Medical Journal, 2020
Objectives: We sought to determine the overall observed three-year survival rate of women with breast cancer in Basrah, Iraq, and investigate the associated factors. Methods: Data was collected retrospectively from the Oncology Center registry in Basrah,
Jasim N. Al-Asadi, Sundus M. Al-Mayah
doaj   +1 more source

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