Abstract #300994

This is the preliminary program for the 2003 Joint Statistical Meetings in San Francisco, California. Currently included in this program is the "technical" program, schedule of invited, topic contributed, regular contributed and poster sessions; Continuing Education courses (August 2-5, 2003); and Committee and Business Meetings. This on-line program will be updated frequently to reflect the most current revisions.

To View the Program:
You may choose to view all activities of the program or just parts of it at any one time. All activities are arranged by date and time.

The views expressed here are those of the individual authors
and not necessarily those of the ASA or its board, officers, or staff.

Back to main JSM 2003 Program page
JSM 2003 Abstract #300994
Activity Number: 96
Type: Contributed
Date/Time: Monday, August 4, 2003 : 8:30 AM to 10:20 AM
Sponsor: Biometrics Section
Abstract - #300994
Title: A Multistate Stochastic Model for Longitudinal Data with Discrete Outcomes
Author(s): Sujuan Gao*+
Companies: Indiana University-Purdue University Indianapolis
Address: Division of Biostatistics, Indianapolis, IN, 46202,
Keywords: longitudinal data ; discrete outcomes ; Markov model
Abstract:

We consider longitudinal studies where multiple discrete outcomes are collected over time and transitions between these outcomes are of interest. We propose a multistate stochastic model for the analysis of such data. The model includes multiple states with some reversible states and an absorbing state for death. Homogeneous Markov property is often assumed for these multistate models which assume transitional probabilities depend only on the stochastic states the subjects occupy at a prior step. The Markov assumption does not accommodate the correlations among multiple outcomes observed over time from each subjects. We present a multistate model that include subject-specific random effects and discuss issues related to parameter estimation from the maximum likelihood approach. Data from a longitudinal dementia study are used to illustrate our approach.

  • The address information is for the authors that have a + after their name.
  • Authors who are presenting talks have a * after their name.

Back to the full JSM 2003 program

JSM 2003 For information, contact meetings@amstat.org or phone (703) 684-1221. If you have questions about the Continuing Education program, please contact the Education Department.
Revised March 2003