Estimating the effect of latent time-varying count exposures using multiple lists

Author:

Won Jung Yeon1ORCID,Elliott Michael R1,Sanchez-Vaznaugh Emma V2,Sánchez Brisa N3ORCID

Affiliation:

1. Department of Biostatistics, University of Michigan , Ann Arbor, Michigan 48109 , United States

2. Department of Health Education, San Francisco State University , San Francisco, California 94132 , United States

3. Department of Epidemiology and Biostatistics, Drexel University , Philadelphia, Pennsylvania 19104 , United States

Abstract

ABSTRACT A major challenge in longitudinal built-environment health studies is the accuracy of commercial business databases that are used to characterize dynamic food environments. Different databases often provide conflicting exposure measures on the same subject due to different source credibilities. As on-site verification is not feasible for historical data, we suggest combining multiple databases to correct the bias in health effect estimates due to measurement error in any 1 datasource. We propose a joint model for the time-varying health outcomes, observed count exposures, and latent true count exposures. Our model estimates the time-specific quality of sources and incorporates time dependence of true count exposure by Poisson integer-valued first-order autoregressive process. We take a Bayesian nonparametric approach to flexibly account for location-specific exposures. By resolving the discordance between different databases, our method reduces the bias in the longitudinal health effect of the true exposures. Our method is demonstrated with childhood obesity data in California public schools with respect to convenience store exposures in school neighborhoods from 2001 to 2008.

Funder

NIH

Publisher

Oxford University Press (OUP)

Reference29 articles.

1. Spatio-temporal low count processes with application to violent crime events;Aldor-Noiman;Statistica Sinica,2016

2. First-order integer-valued autoregressive (INAR (1)) process: distributional and regression properties;Alzaid;Statistica Neerlandica,1988

3. Association of the built environment with physical activity and obesity in older persons;Berke;American Journal of Public Health,2007

4. California department of education, physical fitness testing (PFT);California Department of Education,2020

5. Models for estimating abundance from repeated counts of an open metapopulation;Dail;Biometrics,2011

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