A shared neighbor conditional autoregressive model for small area spatial data


Lawson, AB; Rotejanaprasert, C; Moraga, P; Choi, J; (2015) A shared neighbor conditional autoregressive model for small area spatial data. Environmetrics, 26 (6). pp. 383-392. ISSN 1180-4009 DOI: https://doi.org/10.1002/env.2346

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Abstract

The use of conditional autoregressive (CAR) models for spatial effects is commonplace, especially when dealing with aggregated count data in health studies. CAR models are convenient and relatively easy to implement but suffer from the fact that they have limited flexibility in modeling correlation. We introduce a new CAR model that can accommodate different neighborhood features (including shared neighbors). Further, we examine via simulation how this model performs in comparison with standard CAR models. We also consider the application to a small area health data example. Copyright (c) 2015 John Wiley & Sons, Ltd.

Item Type: Article
Keywords: conditional autoregressive model, spatial statistics, small area data, Bayesian statistics
Faculty and Department: Faculty of Infectious and Tropical Diseases > Dept of Disease Control
Web of Science ID: 360978100001
URI: http://researchonline.lshtm.ac.uk/id/eprint/2379673

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