Accelerated Failure Time Models
Rank Inferences for The Accelerated Failure Time Models
... the time until some event to ...data, failure time data or survival ...survival time to the covariates, a semiparametric accelerated failure time model is often used to ...
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Log-skew-normal accelerated failure time models
... In this paper, we have described accelerated failure time models with skew-normal distributed (Azzalini, 1985) random effects and/or error terms. For univariate data, the model is an extension ...
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Estimation of accelerated failure time models with random effects
... 3 Accelerated Failure Time Models Although the Cox proportional hazards model has been extensively used in medical research, the assumption of proportional hazard functions is rather strong ...
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Specification testing for transformation models with an application to generalized accelerated failure-time models
... generalized accelerated failure-time models for data on the durations of strikes among manufacturers in the US and of …rst marriages of divorced ...
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Comparison of proportional hazards and accelerated failure time models
... (survival time) ...with time-dependent variables [10] can be used for the analysis of survival ...The accelerated failure time (AFT) [10] model is another alternative method for the ...
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Regular Variation and the Identification of Generalized Accelerated Failure-Time Models
... GAFT models, and rely on multivariate versions of restrictions on the behavior of g near 0, as in Theorem ...GAFT models, including those in this paper, can be adapted to a class of mixed ...
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Interpretation of exposure effect in competing risks setting under accelerated failure time models
... risks models should be ...semi-parametric models, hazard-based regression methods are often expended under PH assumption and parametric models which often have AFT characteristics have attracted less ...
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The Use of Conditional Probability Integral Transformation Method for Testing Accelerated Failure Time Models
... log- failure times occurring at the same stress level have the same transformed stress level value x j , and since CPIT 3 is based on omitting the first 3 observations, then in order to use this transformation, ...
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Application of accelerated failure time models for breast cancer patients' survival in Kurdistan Province of Iran
... يﺎﻫ ﻂﯿﺤﻣ رد نآ دﺮﺑرﺎﮐ ﻪﻠﺌﺴﻣ ﻦﯿﻤﻫ و ﺖﺳا لﻮﻠﺤﻣﺎﻧ بآ رد ﻦﯿﻣﺎﺘﯾو ﻦﯾا ﯽﻣ دوﺪﺤﻣ ار ﯽﺒﻄﻗ دزﺎﺳ. مﺎﺠﻧا ﺐﯿﮐﺮﺗ ﻦﯾا بآ رد لﻮﻠﺤﻣ يﺎﻫ گﻮﻟﺎﻧآ زا هدﺎﻔﺘﺳا ياﺮﺑ يدﺎﯾز يﺎﻫ ﯽﺳرﺮﺑ ﺮﺿﺎﺣ لﺎﺣ رد دﺮﯾﺬﭘ ﯽﻣ. ﻦﯾا[r] ...
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Further Increasing Fisher's Information for Parameters of Association in Accelerated Failure Time Models via Double Extreme Ranks
... In this paper we proposed a more efficient survival regression analysis method for AFT models based on the modified DERSS with ranking based on an auxiliary variable known to be associated with the response ...
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Performance of Cox Proportional Hazard and Accelerated Failure Time Models in the Analysis of HIV/TB Co-infection Survival Data
... In this study, the Cox model and the Accelerated Failure Time model have been compared using HIV/TB Co- infection data. The result showed that there were 76 patients on treatment. The Cox model was ...
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Prognostic factors of survival time after hematopoietic stem cell transplant in acute lymphoblastic leukemia patients: Cox proportional hazard versus accelerated failure time models
... Maximum likelihood, AIC (table 1), and Cox-Snell resid- ual plots (Figure 6 show Weibull AFT is the best fitted model among AFT models. There are two types of Weibull model: Weibull AFT and Weibull PH; but only ...
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Application of the Misclassification Simulation Extrapolation (Mc-Simex) Procedure to Log-Logistic Accelerated Failure Time (Aft) Models In Survival Analysis
... of time to event outcomes. Accelerated Failure Time models (AFT) serve as a useful tool in survival analysis to study the time of occurrence of an event and its relation to the ...
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Analysis of accelerated failure time data with dependent censoring using auxiliary variables via nonparametric multiple imputation
... (PH) models, one for the event times and the other for the censoring times, to define a nearest neighbor imputing risk ...impute failure times for censored ...follow accelerated failure ...
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Nonparametric identification of accelerated failure time competing risks models
... risks models include censoring, for example, if the risks corre- spond to different ways one could exit unemployment (such as finding a job or dropping out of the labor force) then in a data set with attrition, ...
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Mediation Analysis with Survival Outcomes: Accelerated Failure Time vs. Proportional Hazards Models
... on models that incorporate time-dependent mediators, non-continuous mediators, treatment by mediator interactions, or informative ...parametric models, they allow for the inclusion of ...
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On the Accelerated Failure Time Model for Current Status and Interval Censored Data
... equation (Tsiatis, 1990) for AFT model with right censored data can be viewed as inverting the score test for null proportional hazards working model. Depending on the distribution of the error term, more efficient ...
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Power-Law Adjusted Failure-Time Models
... Index Terms—survival analysis; bathtub hazard; accelerated failure time (AFT) regression; power-law distribution. I. I NTRODUCTION Parametric distributions play an important role in the analysis of ...
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Generalized F accelerated failure time model for mapping survival trait loci
... As time-to-event, survival traits are broadly de fi ned as the length of time between two ...semi-parametric models, are developed ...semi-parametric models, the Cox proportional hazard model ...
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Accelerated Failure Time Model for Correlated Survival Data: Efficient Estimation and Inference.
... Joint models can describe the association among failure times within clusters by random ...joint models can improve the estimation efficiency comparing with marginal ...
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