181265 Mapping physical activity opportunities and fruit and vegetable outlets to area-level characteristics

Tuesday, October 28, 2008: 4:30 PM

Di H. Cross, BSE , Department of Epidemiology, Emory University, Atlanta, GA
Youngmee Kim, PhD , Behavioral Research Center, American Cancer Society, Atlanta, GA
Lance Waller , Biostatistics Department, Emory University, Atlanta, GA
Michael C. Page , Electronic Data Librarians, Emory University, Atlanta, GA
K.M. Venkat Narayan, MD, Ph , Hubert Department of Global Health, Emory University, Atlanta, GA
Roberd M. Bostick, MD, MPH , Department of Epidemiology, Emory University, Atlanta, GA
Carol J. Rowland Hogue, PhD, MPH , Women's and Children's Center, Department of Epidemiology, Rollins School of Public Health of Emory University, Atlanta, GA
The built environment has been linked with individual physical activity behaviors and fruit and vegetable consumption. Furthermore, disparities in the built environment have been reported in selected US cities.

The aims of this study are to document disparities in physical activity opportunities (PAOs) and fruit and vegetable outlets (FVOs) within metropolitan statistical areas (MSAs) in the US and to identify area-level predictors of such disparities by combining tools and resources from demography, public health, urban planning, business, and GIS.

Data sources include the US Census, business listings from the Dun & Bradstreet Million Dollar Database, and street and marketing data from the Environmental Studies Research Institute. PAOs are operationalized via street structure, and locations of parks, gyms, and schools. FVOs are defined through locations of grocery stores, farmers markets, community-support agriculture programs, and food co-ops. Logistic regression was used to examine the independent associations of PAOs and FVOs and the following block group (BG) characteristics: urbanization (dichotomous), size, median age, and percent white race (quartiles).

Preliminary analysis of BGs within two MSAs (Atlanta N=2,008, Austin N=798) indicates that grocery store concentration is higher in census-defined urban areas (89% of BGs, OR=2.36, p<0.0001) after adjusting for population size (p=0.003), race/ethnicity (p=0.06), and BG size (p<0.0001). Associations between urbanization and access to greenspace varied by MSA (Atlanta OR=5.45, Austin OR=15.95, interaction p<0.0001).

PAO and FVO-deprived areas exist and vary in degree by MSA. An understanding of these phenomena in a variety of US cities could aid in procedures to improve individual behavior.

Learning Objectives:
1. Describe relationships between area-level characteristics and opportunities for physical activity and fruit and vegetable consumption 2. Articular methods for mapping multiple components of related constructs

Keywords: Physical Activity, Nutrition

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I am solely responsible for data analysis and am the originator for the ideas presented in this abstract
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.