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- Title
Evaluation of a method for fitting a semi-Markov process model in the presence of left-censored spells using the Cardiovascular Health Study.
- Authors
Cai, Liming; Schenker, Nathaniel; Lubitz, James; Diehr, Paula; Arnold, Alice; Fried, Linda P.
- Abstract
We used a longitudinal data set covering 13 years from the Cardiovascular Health Study to evaluate the properties of a recently developed approach to deal with left censoring that fits a semi-Markov process (SMP) model by using an analog to the stochastic EM algorithm-the SMP-EM approach. It appears that the SMP-EM approach gives estimates of duration-dependent probabilities of health changes similar to those obtained by using SMP models that have the advantage of actual duration data. SMP-EM estimates of duration-dependent transition probabilities also appear more accurate and less variable than multi-state life table estimates. Published in 2008 by John Wiley & Sons, Ltd.
- Publication
Statistics in Medicine, 2008, Vol 27, Issue 26, p5509
- ISSN
0277-6715
- Publication type
Article
- DOI
10.1002/sim.3382