JSM 2013 Home
Online Program Home
My Program

Abstract Details

Activity Number: 154
Type: Invited
Date/Time: Monday, August 5, 2013 : 10:30 AM to 12:20 PM
Sponsor: International Chinese Statistical Association
Abstract - #307297
Title: Joint Analysis of Multivariate Spatial Count and Zero-Heavy Count Outcomes Using Common Spatial Factor Models
Author(s): Charmaine Dean*+ and Cindy Feng
Companies: University of Western Ontario and University of Saskatchewan
Keywords: spatial analysis ; joint models ; zero-inflation ; count data ; frailty model ; ecology
Abstract:

This talk discusses joint outcome modeling of multivariate spatial data, where outcomes include count as well as zero-inflated count data. The framework utilized for the joint spatial count outcome analysis reflects that which is now commonly employed for the joint analysis of longitudinal and survival data, termed shared frailty models, in which the outcomes are linked through a shared latent spatial random risk term. We discuss these types of joint mapping models and consider the benefits achieved through such joint modeling in the disease mapping context. We also consider the power of tests for common spatial structure and develop recommendations on the sort of power achievable in some contexts, as well as overall recommendations on the utility of joint mapping. We illustrate the approaches in an analysis of lung cancer mortality as well as an ecological study of Comandra blister rust infection of lodgepole pine trees.


Authors who are presenting talks have a * after their name.

Back to the full JSM 2013 program




2013 JSM Online Program Home

For information, contact jsm@amstat.org or phone (888) 231-3473.

If you have questions about the Continuing Education program, please contact the Education Department.

The views expressed here are those of the individual authors and not necessarily those of the JSM sponsors, their officers, or their staff.

ASA Meetings Department  •  732 North Washington Street, Alexandria, VA 22314  •  (703) 684-1221  •  meetings@amstat.org
Copyright © American Statistical Association.