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A Nonparametric Estimation Procedure for a Periodically Observed Three‐State Markov Process, with Application to Aids

A Nonparametric Estimation Procedure for a Periodically Observed Three‐State Markov Process, with... Estimation in a three‐state Markov process with irreversible transitions in the presence of interval‐censored data is considered. A nonparametric maximum likelihood procedure for the estimation of the cumulative transition intensities is presented. A self‐consistent estimator of the parameters is defined and it is shown that the maximum likelihood estimator is a self‐consistent estimator. This extends the idea of self‐consistency introduced by Efron to the estimation of more than one parameter. An algorithm, based on self‐consistency equations, is provided for the computation of the estimators. This algorithm is a generalization of an algorithm by Turnbull which yields an estimator of a distribution function for interval‐censored univariate data. The methods are applied to Aids data. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of the Royal Statistical Society Series B (Statistical Methodology) Oxford University Press

A Nonparametric Estimation Procedure for a Periodically Observed Three‐State Markov Process, with Application to Aids

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References (15)

Publisher
Oxford University Press
Copyright
© Royal Statistical Society
ISSN
1369-7412
eISSN
1467-9868
DOI
10.1111/j.2517-6161.1992.tb01457.x
Publisher site
See Article on Publisher Site

Abstract

Estimation in a three‐state Markov process with irreversible transitions in the presence of interval‐censored data is considered. A nonparametric maximum likelihood procedure for the estimation of the cumulative transition intensities is presented. A self‐consistent estimator of the parameters is defined and it is shown that the maximum likelihood estimator is a self‐consistent estimator. This extends the idea of self‐consistency introduced by Efron to the estimation of more than one parameter. An algorithm, based on self‐consistency equations, is provided for the computation of the estimators. This algorithm is a generalization of an algorithm by Turnbull which yields an estimator of a distribution function for interval‐censored univariate data. The methods are applied to Aids data.

Journal

Journal of the Royal Statistical Society Series B (Statistical Methodology)Oxford University Press

Published: Jul 1, 1992

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