Semiparametric bayes' proportional odds models for current status data with underreporting.

ABSTRACT: Current status data are a type of interval-censored event time data in which all the individuals are either left or right censored. For example, our motivation is drawn from a cross-sectional study, which measured whether or not fibroid onset had occurred by the age of an ultrasound exam for each woman. We propose a semiparametric Bayesian proportional odds model in which the baseline event time distribution is estimated nonparametrically by using adaptive monotone splines in a logistic regression model and the potential risk factors are included in the parametric part of the mean structure. The proposed approach has the advantage of being straightforward to implement using a simple and efficient Gibbs sampler, whereas alternative semiparametric Bayes' event time models encounter problems

SUBMITTER: Wang L 

PROVIDER: S-EPMC3616323 | biostudies-literature | 2011 Sep

REPOSITORIES: biostudies-literature