Results 11 to 20 of about 172,693 (257)

Generalized Accelerated Failure Time Models for Recurrent Events

open access: yesMathematics, 2022
For analyzing recurrent event data, we consider a generalization of the classical accelerated failure time model. In the proposed approach, the general function is no longer assumed to be a singleton but allowed to be time-varying.
Xiaoyi Wen, Jinfeng Xu
doaj   +1 more source

Weighted Log-Rank Statistics for Accelerated Failure Time Model

open access: yesStats, 2021
This paper improves the sensitivity of the Gρ family of weighted log-rank tests for the accelerated failure time model, accommodating realistic alternatives in survival analysis with censored data, such as heavy censoring and crossing hazards.
Seung-Hwan Lee
doaj   +1 more source

Accelerating mean time to failure computations [PDF]

open access: yesPerformance Evaluation, 1996
Summary: We consider the problem of numerical computation of the mean time to failure (MTTF) in Markovian dependability and/or performance models. The problem can be cast as a system of linear equations which is solved using an iterative method preserving sparsity of the Markov chain matrix. For highly dependable systems, system failure is a rare event
Heidelberger, P.   +2 more
openaire   +1 more source

Interval Mapping Using Nonparametric Accelerated Failure Time Cure Model [PDF]

open access: yesJournal of Statistical Theory and Applications (JSTA), 2013
Many important problems in evolutionary biology begin with observations of phenotypic variation. Suppose time to an event-data are used to map quantitative trait loci (QTL) and underlying population is a mixture of susceptible and non-susceptible ...
Devrim Bilgili, Nader Ebrahimi
doaj   +1 more source

Using the Weibull Accelerated Failure Time Regression Model to Predict Time to Health Events

open access: yesApplied Sciences, 2023
Clinical prediction models are commonly utilized in clinical practice to screen high-risk patients. This enables healthcare professionals to initiate interventions aimed at delaying or preventing adverse medical events.
Enwu Liu, Ryan Yan Liu, Karen Lim
doaj   +1 more source

Regularized Estimation for the Accelerated Failure Time Model [PDF]

open access: yesBiometrics, 2009
SummaryIn the presence of high‐dimensional predictors, it is challenging to develop reliable regression models that can be used to accurately predict future outcomes. Further complications arise when the outcome of interest is an event time, which is often not fully observed due to censoring.
Cai, T., Huang, J., Tian, L.
openaire   +3 more sources

Survival analysis of women breast cancer patients in Northwest Amhara, Ethiopia

open access: yesFrontiers in Oncology, 2022
IntroductionBreast cancer, the most common cause of cancer death and the most frequently diagnosed cancer among women worldwide, ranks as the second cause of death next to lung cancer.
Bereket Feleke   +3 more
doaj   +1 more source

Predictive influence in the accelerated failure time model [PDF]

open access: yesBiostatistics, 2002
We develop case deletion diagnostics for prediction of future observations in the accelerated failure time model. We view prediction to be an important inferential goal in a survival analysis and thus it is important to identify whether particular observations may be influencing the quality of predictions.
Bedrick, Edward J.   +3 more
openaire   +2 more sources

Indian Perspectives on Graft Materials Used for Repair of Tympanic Membrane [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2017
Introduction: Repair of Tympanic Membrane (TM) is one of the most common surgeries performed by the otologists. Literature reveals that Indian surgeons have contributed substantially in the research on techniques and graft materials used for the ...
Manu Malhotra   +3 more
doaj   +1 more source

A Continuous Correlation Between Residual Tumor Volume and Survival Recommends Maximal Safe Resection in Glioblastoma Patients: A Nomogram for Clinical Decision Making and Reference for Non-Randomized Trials

open access: yesFrontiers in Oncology, 2021
ObjectiveThe exact role of the extent of resection or residual tumor volume on overall survival in glioblastoma patients is still controversial. Our aim was to create a statistical model showing the association between resection extent/residual tumor ...
Marco Skardelly   +24 more
doaj   +1 more source

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