Results 41 to 50 of about 10,533,556 (401)

A review of the use of time‐varying covariates in the Fine‐Gray subdistribution hazard competing risk regression model

open access: yesStatistics in Medicine, 2019
In survival analysis, time‐varying covariates are covariates whose value can change during follow‐up. Outcomes in medical research are frequently subject to competing risks (events precluding the occurrence of the primary outcome). We review the types of
P. Austin, A. Latouche, J. Fine
semanticscholar   +1 more source

Long‐Term Changes in Estimated Glomerular Filtration Rate in Left Ventricular Assist Device Recipients: A Longitudinal Joint Model Analysis

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023
Background Advanced kidney disease is often a relative contraindication to left ventricular assist device (LVAD) implantation because of concerns for poor outcomes including worsening kidney disease.
Bethany Roehm   +7 more
doaj   +1 more source

Do the Impacts of Mentally Active and Passive Sedentary Behavior on Dementia Incidence Differ by Physical Activity Level? A 5-year Longitudinal Study

open access: yesJournal of Epidemiology, 2023
Background: It has not been determined whether mentally active sedentary behavior (MASB) and passive sedentary behavior (PSB) differentially affect cognitive function and whether these associations differ according to physical activity (PA) level.
Yuta Nemoto   +5 more
doaj   +1 more source

Injury prevention strategies at the FIFA 2014 World Cup: perceptions and practices of the physicians from the 32 participating national teams [PDF]

open access: yes, 2015
Purpose The available scientific research regarding injury prevention practices in international football is sparse. The purpose of this study was to quantify current practice with regard to (1) injury prevention of top-level footballers competing in an ...
Alan McCall   +41 more
core   +3 more sources

Use of Multivariable Mendelian Randomization to Address Biases Due to Competing Risk Before Recruitment

open access: yesFrontiers in Genetics, 2021
Background: Mendelian randomization (MR) provides unconfounded estimates. MR is open to selection bias when the underlying sample is selected on surviving to recruitment on the genetically instrumented exposure and competing risk of the outcome.
C. M. Schooling   +7 more
doaj   +1 more source

On competing risk and degradation processes

open access: yes, 2006
Lehmann's ideas on concepts of dependence have had a profound effect on mathematical theory of reliability. The aim of this paper is two-fold. The first is to show how the notion of a ``hazard potential'' can provide an explanation for the cause of ...
Singpurwalla, Nozer D.
core   +2 more sources

Research on the Effects of Chemotherapy on Survival Outcomes for Older Patients with Primary Triple-Negative Breast Cancer after Surgery: A Propensity Score Matching and Competing Risk Analysis of the SEER Database

open access: yesClinical and Experimental Obstetrics & Gynecology, 2023
Background: The population of older women (≥70 years old) with triple-negative breast cancer (TNBC) is increasing, but there are few prognostic studies for these patients.
Chongwu He   +7 more
doaj   +1 more source

Dosimetric predictors of temporal lobe injury after intensity-modulated radiotherapy for T4 nasopharyngeal carcinoma: a competing risk study

open access: yesRadiation Oncology, 2019
In patients with T4 nasopharyngeal carcinoma (NPC), death may occur prior to the occurrence of temporal lobe injury (TLI). Because such competing risk death precludes the occurrence of TLI and thus the competing risk analysis should be applied to TLI ...
Juan Huang   +5 more
semanticscholar   +1 more source

Risk of second primary malignancy after non-small cell lung cancer: a competing risk nomogram based on the SEER database.

open access: yesAnnals of Translational Medicine, 2019
Background With the improvement of survival for non-small cell lung cancer (NSCLC), research focused on second primary malignancy (SPM) in NSCLC survivors is becoming urgent. This study aimed to estimate the risk of SPM in NSCLC patients.
Huaqiang Zhou   +13 more
semanticscholar   +1 more source

Competing Conceptions of Risk [PDF]

open access: yes, 1996
Recent literature is said to reflect growing acknowledgment of multiple conceptions of risk but often to obscure an important distinction. Building on work of Kristin Shrader-Frechette, the authors explore the potential for debate over competing ...
Dean, Wesley, Thompson, Paul B.
core   +1 more source

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