The neighborhood food environment: sources of historical data on retail food stores

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BioMed Central

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Short paper

The neighborhood food environment: sources of historical data on retail food stores May C Wang*1,2, Alma A Gonzalez1,3, Lorrene D Ritchie2 and Marilyn A Winkleby3 Address: 1School of Public Health, University of California at Berkeley, CA, USA, 2Center for Weight & Health, College of Natural Resources & School of Public Health, University of California at Berkeley, CA, USA and 3Stanford Prevention Research Center, Stanford University School of Medicine, USA Email: May C Wang* - [email protected]; Alma A Gonzalez - [email protected]; Lorrene D Ritchie - [email protected]; Marilyn A Winkleby - [email protected] * Corresponding author

Published: 17 July 2006 International Journal of Behavioral Nutrition and Physical Activity 2006, 3:15 5868-3-15

doi:10.1186/1479-

Received: 15 December 2005 Accepted: 17 July 2006

This article is available from: http://www.ijbnpa.org/content/3/1/15 © 2006 Wang et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract With the rapidly increasing prevalence of obesity in the United States, and the minimal success of education-based interventions, there is growing interest in understanding the role of the neighborhood food environment in determining dietary behavior. This study, as part of a larger study, identifies historical data on retail food stores, evaluates strengths and limitations of the data for research, and assesses the comparability of historical retail food store data from a government and a commercial source. Five government and commercial listings of retail food stores were identified. The California State Board of Equalization (SBOE) database was selected and then compared to telephone business directory listings. The Spearman's correlation coefficient was used to assess the congruency of food store counts per census tract between the SBOE and telephone business directory databases. The setting was four cities in Northern California, 1979–1990. The SBOE and telephone business directory databases listed 127 and 351 retail food stores, respectively. The SBOE listed 36 stores not listed by the telephone business directories, while the telephone business directories listed 260 stores not listed by the SBOE. Spearman's correlation coefficients between estimates of stores per census tract made from the SBOE listings and those made from the telephone business directory listings were approximately 0.5 (p < .0001) for the types of stores studied (chain supermarkets, small grocery stores, and chain convenience markets). We conclude that, depending on the specific aims of the study, caution and considerable effort must be exercised in using and applying historical data on retail food stores.

Short paper With the increasing prevalence of obesity in the United