Strategies for imputing missing covariates in accelerated failure time models.
Sign Up to like & getrecommendations! Published in 2018 at "Statistics in medicine"
DOI: 10.1002/sim.7809
Abstract: Missing covariates often occur in biomedical studies with survival outcomes. Multiple imputation via chained equations (MICE) is a semi-parametric and flexible approach that imputes multivariate data by a series of conditional models, one for each… read more here.
Keywords: time; missing covariates; accelerated failure; time models ... See more keywords
Jackknife empirical likelihood inference for the accelerated failure time model
Sign Up to like & getrecommendations! Published in 2019 at "TEST"
DOI: 10.1007/s11749-018-0601-7
Abstract: Accelerated failure time (AFT) model is a useful semi-parametric model under right censoring, which is an alternative to the commonly used proportional hazards model. Making statistical inference for the AFT model has attracted considerable attention.… read more here.
Keywords: model; inference; failure time; accelerated failure ... See more keywords
Relationships between β-amyloid and tau in an elderly population: An accelerated failure time modelww
Sign Up to like & getrecommendations! Published in 2021 at "NeuroImage"
DOI: 10.1016/j.neuroimage.2021.118440
Abstract: Using positron emission tomography (PET)-derived amyloid and tau measurements from 1,495 participants, we explore the evolution of these values over time via an accelerated failure time (AFT) model. The AFT model assumes a shared pattern… read more here.
Keywords: amyloid tau; curve leftward; time; accelerated failure ... See more keywords
Flexible parametric accelerated failure time model.
Sign Up to like & getrecommendations! Published in 2021 at "Journal of biopharmaceutical statistics"
DOI: 10.1080/10543406.2021.1934854
Abstract: Accelerated Failure Time (AFT) models are viable alternatives to the Cox proportional hazard model, where failure times are explicitly modelled with respect to covariates. A major problem with parametric AFT models in practice is that… read more here.
Keywords: aft models; model; accelerated failure; failure ... See more keywords
On testing the fit of accelerated failure time and proportional hazard Weibull extension models
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Statistical Theory and Practice"
DOI: 10.1080/15598608.2017.1397568
Abstract: Characterized by three parameters, the Weibull extension distribution is introduced by Xie et al. as a generalization of the classical Weibull distribution. In this article, we are interested in the construction of modified chi-squared goodness-of-fit… read more here.
Keywords: weibull extension; accelerated failure; extension; failure time ... See more keywords
A flexible parametric accelerated failure time model and the extension to time-dependent acceleration factors.
Sign Up to like & getrecommendations! Published in 2022 at "Biostatistics"
DOI: 10.1093/biostatistics/kxac009
Abstract: Accelerated failure time (AFT) models are used widely in medical research, though to a much lesser extent than proportional hazards models. In an AFT model, the effect of covariates act to accelerate or decelerate the… read more here.
Keywords: accelerated failure; time; time dependent; failure time ... See more keywords
Characterizing quantile-varying covariate effects under the accelerated failure time model.
Sign Up to like & getrecommendations! Published in 2023 at "Biostatistics"
DOI: 10.1093/biostatistics/kxac052
Abstract: An important task in survival analysis is choosing a structure for the relationship between covariates of interest and the time-to-event outcome. For example, the accelerated failure time (AFT) model structures each covariate effect as a… read more here.
Keywords: accelerated failure; time; failure time; model ... See more keywords
Individualized treatment effects with censored data via fully nonparametric Bayesian accelerated failure time models.
Sign Up to like & getrecommendations! Published in 2018 at "Biostatistics"
DOI: 10.1093/biostatistics/kxy028
Abstract: Individuals often respond differently to identical treatments, and characterizing such variability in treatment response is an important aim in the practice of personalized medicine. In this article, we describe a nonparametric accelerated failure time model… read more here.
Keywords: treatment effects; treatment; failure time; accelerated failure ... See more keywords
An accelerated failure time regression model for illness-death data: A frailty approach.
Sign Up to like & getrecommendations! Published in 2022 at "Biometrics"
DOI: 10.1111/biom.13880
Abstract: This work presents a new model and estimation procedure for the illness-death survival data where the hazard functions follow accelerated failure time (AFT) models. A shared frailty variate induces positive dependence among failure times of… read more here.
Keywords: accelerated failure; failure time; death; model ... See more keywords
Accelerated Failure Time Model to Explore the Perception Response Times of Drivers in Simulated Car-Following Scenarios
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Advanced Transportation"
DOI: 10.1155/2020/8894162
Abstract: In the development of effective rear-end collision alarm systems, understanding the factors that influence the perception response times (PRT) of drivers is important for the design of a reasonable lead time for the warning (or… read more here.
Keywords: response times; prt drivers; time; model ... See more keywords
Predicting Length of Stay among Patients Discharged from the Emergency Department—Using an Accelerated Failure Time Model
Sign Up to like & getrecommendations! Published in 2017 at "PLoS ONE"
DOI: 10.1371/journal.pone.0165756
Abstract: Background Emergency department (ED) crowding continues to be an important health care issue in modern countries. Among the many crucial quality indicators for monitoring the throughput process, a patient’s length of stay (LOS) is considered… read more here.
Keywords: patients discharged; time; emergency department; model ... See more keywords