Articles with "survival data" as a keyword



Optimal subsampling for semi‐parametric accelerated failure time models with massive survival data using a rank‐based approach

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Published in 2024 at "Statistics in Medicine"

DOI: 10.1002/sim.10200

Abstract: Subsampling is a practical strategy for analyzing vast survival data, which are progressively encountered across diverse research domains. While the optimal subsampling method has been applied to inferences for Cox models and parametric accelerated failure… read more here.

Keywords: parametric accelerated; failure time; time; survival data ... See more keywords

Multilevel model with random effects for clustered survival data with multiple failure outcomes.

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Published in 2019 at "Statistics in medicine"

DOI: 10.1002/sim.8041

Abstract: We present a multilevel frailty model for handling serial dependence and simultaneous heterogeneity in survival data with a multilevel structure attributed to clustering of subjects and the presence of multiple failure outcomes. One commonly observes… read more here.

Keywords: multiple failure; methodology; survival data; random effects ... See more keywords

Frailty proportional mean residual life regression for clustered survival data: A hierarchical quasi-likelihood method.

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Published in 2019 at "Statistics in medicine"

DOI: 10.1002/sim.8338

Abstract: Frailty models are widely used to model clustered survival data arising in multicenter clinical studies. In the literature, most existing frailty models are proportional hazards, additive hazards, or accelerated failure time model based. In this… read more here.

Keywords: likelihood; survival data; clustered survival; frailty ... See more keywords

Deep learning for the dynamic prediction of multivariate longitudinal and survival data

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Published in 2022 at "Statistics in Medicine"

DOI: 10.1002/sim.9392

Abstract: The joint model for longitudinal and survival data improves time‐to‐event predictions by including longitudinal outcome variables in addition to baseline covariates. However, in practice, joint models may be limited by parametric assumptions in both the… read more here.

Keywords: survival data; time event; longitudinal survival; survival ... See more keywords

Generalized mean residual life models for survival data with missing censoring indicators

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Published in 2022 at "Statistics in Medicine"

DOI: 10.1002/sim.9615

Abstract: The mean residual life (MRL) function is an important and attractive alternative to the hazard function for characterizing the distribution of a time‐to‐event variable. In this article, we study the modeling and inference of a… read more here.

Keywords: survival data; censoring indicators; generalized mean; mean residual ... See more keywords

New C‐indices for assessing importance of longitudinal biomarkers in fitting competing risks survival data in the presence of partially masked causes

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Published in 2023 at "Statistics in Medicine"

DOI: 10.1002/sim.9671

Abstract: Competing risks survival data in the presence of partially masked causes are frequently encountered in medical research or clinical trials. When longitudinal biomarkers are also available, it is of great clinical importance to examine associations… read more here.

Keywords: survival data; masked causes; data presence; risks survival ... See more keywords

Nonparametric estimation of marked survival data in the presence of dependent censoring

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Published in 2023 at "Statistics in Medicine"

DOI: 10.1002/sim.9710

Abstract: We consider nonparametrically estimating the joint distribution of a survival time and mark variable, where the survival time is subject to right censoring and the mark variable is only observed when the survival time is… read more here.

Keywords: estimation marked; survival data; marked survival; dependent censoring ... See more keywords

Feature screening for ultrahigh-dimensional survival data when failure indicators are missing at random

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Published in 2019 at "Statistical Papers"

DOI: 10.1007/s00362-019-01128-5

Abstract: In modern statistical applications, the dimension of covariates can be much larger than the sample size, and extensive research has been done on screening methods which can effectively reduce the dimensionality. However, the existing feature… read more here.

Keywords: missing random; feature screening; failure indicators; indicators missing ... See more keywords

Subsampling approach for least squares fitting of semi-parametric accelerated failure time models to massive survival data

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Published in 2024 at "Statistics and Computing"

DOI: 10.1007/s11222-024-10391-y

Abstract: Massive survival data are increasingly common in many research fields, and subsampling is a practical strategy for analyzing such data. Although optimal subsampling strategies have been developed for Cox models, little has been done for… read more here.

Keywords: failure time; time; massive survival; survival data ... See more keywords

Nonparametric identification and estimation of dynamic treatment effects for survival data in a regression discontinuity design

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Published in 2019 at "Economics Letters"

DOI: 10.1016/j.econlet.2019.108665

Abstract: Treatment assignment in the survival literature is often assumed to be allocated simultaneously and independently of prospective treatment gains. This paper relaxes these restrictions by introducing dynamic treatment assignment for survival data in a regression… read more here.

Keywords: dynamic treatment; treatment; data regression; survival data ... See more keywords
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More powerful logrank permutation tests for two-sample survival data

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Published in 2018 at "Journal of Statistical Computation and Simulation"

DOI: 10.1080/00949655.2020.1773463

Abstract: Weighted logrank tests are a popular tool for analysing right-censored survival data from two independent samples. Each of these tests is optimal against a certain hazard alternative, for example, the classical logrank test for proportional… read more here.

Keywords: logrank permutation; powerful logrank; permutation; tests two ... See more keywords