Title
Semiparametric spatial model for interval-censored data with time-varying covariate effects.
Abstract
Cox regression is one of the most commonly used methods in the analysis of interval-censored failure time data. In many practical studies, the covariate effects on the failure time may not be constant over time. Time-varying coefficients are therefore of great interest due to their flexibility in capturing the temporal covariate effects. To analyze spatially correlated interval-censored time-to-event data with time-varying covariate effects, a Bayesian approach with dynamic Cox regression model is proposed. The coefficient is estimated as a piecewise constant function and the number of jump points estimated from the data. A conditional autoregressive distribution is employed to model the spatial dependency. The posterior summaries are obtained via an efficient reversible jump Markov chain Monte Carlo algorithm. The properties of our method are illustrated by simulation studies as well as an application to smoking cessation data in southeast Minnesota.
Year
DOI
Venue
2018
10.1016/j.csda.2018.01.017
Computational Statistics & Data Analysis
Keywords
Field
DocType
Cox model,Interval censoring,Reversible jump Markov chain Monte Carlo,Smoking cessation data,Spatial correlation,Time-varying coefficient
Econometrics,Autoregressive model,Covariate,Proportional hazards model,Reversible-jump Markov chain Monte Carlo,Time-varying covariate,Statistics,Censoring (statistics),Mathematics,Piecewise,Bayesian probability
Journal
Volume
Issue
ISSN
123
C
0167-9473
Citations 
PageRank 
References 
0
0.34
0
Authors
2
Name
Order
Citations
PageRank
Yue Zhang100.34
Bin Zhang271.66