Article (Scientific journals)
Smooth estimation of survival functions and hazard ratios from interval-censored data using Bayesian penalized B-splines
Cetinyürek, Aysun; Lambert, Philippe
2011In Statistics in Medicine, 30 (1), p. 75-90
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Keywords :
bayesian; P-spline; Cox proportional hazards
Abstract :
[en] We discuss the use of Bayesian P-spline and of the composite link model to estimate survival functions and hazard-ratios from interval-censored data. If one further assumes proportionality of the hazards, the proposed strategy provides a smoothed estimate of the baseline hazard along with estimates of global covariate effects. The frequentist properties of our Bayesian estimators are assessed by an extensive simulation study. We further illustrate the methodology by two examples showing that the proportionality of the hazards might also be found inappropriate from interval-censored data.
Disciplines :
Mathematics
Author, co-author :
Cetinyürek, Aysun ;  Université de Liège - ULiège > Institut des sciences humaines et sociales > Méthodes quantitatives en sciences sociales
Lambert, Philippe  ;  Université de Liège - ULiège > Institut des sciences humaines et sociales > Méthodes quantitatives en sciences sociales
Language :
English
Title :
Smooth estimation of survival functions and hazard ratios from interval-censored data using Bayesian penalized B-splines
Publication date :
15 January 2011
Journal title :
Statistics in Medicine
ISSN :
0277-6715
eISSN :
1097-0258
Publisher :
John Wiley & Sons, Hoboken, United States - New Jersey
Volume :
30
Issue :
1
Pages :
75-90
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 17 August 2010

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