|Grant Number:||5R01CA149105-03 Interpret this number|
|Primary Investigator:||Dubowitz, Tamara|
|Project Title:||Does a New Supermarket Improve Dietary Behaviors of Low-Income African Americans?|
DESCRIPTION (provided by applicant): Does a new supermarket improve dietary behaviors of low-income African Americans? Obesity poses a serious threat to the health of our nation. Two thirds of adults in the United States are either overweight or obese, and low-income and racial/ethnic minorities are disproportionately affected. Poor dietary quality and patterns are key risk factors for obesity, and both diet and obesity are established risk factors for cancer and other chronic diseases. Increasing evidence suggests that modifying the food environment to support healthy eating may have a sustainable population impact on diet and obesity. Yet, environmental approaches are understudied. In 2010, an 8.5 million dollar full-service grocery store, financed with public and private funds, will change the food retail landscape of the Hill District, a collection of contiguous neighborhoods of Pittsburgh, Pennsylvania. This joint public-private endeavor provides a unique and critically timed opportunity to examine how change in the availability of healthy foods affects food purchasing and dietary intake of residents in a US community. This full-service grocery store will be the first in nearly 30 years for this low-income, predominantly African-American community. The proposed study will capitalize on this natural experiment. Our specific aims are (1) to describe the availability, price, and shelf-space of healthy and less healthy options within food retail venues before and after the introduction of a full-service grocery store; (2) to determine the impact of the introduction of a full-service grocery store on food purchasing behaviors and dietary intake; and (3) to determine the extent to which these associations are modified by access factors (e.g., means of transportation and degree of spatial proximity to the grocery store) and socio-cultural factors (e.g., attitudes toward eating a healthy diet, perceived barriers to eating a healthy diet, and social support for healthy eating). We propose to use a matched quasi-experimental design involving one pre- and two post-"intervention" assessments of 1,000 households in the Hill District and 650 households in matched comparison neighborhood. Using door-to-door surveys, we will collect information on participants' household food purchasing and individual dietary intake. We will also conduct pre- and post- assessments of the food environment in the intervention and comparison neighborhoods. The food environment assessments will document the number and type of food purchasing venues and assess availability, quality, and price of healthy foods in these venues. Collectively, these data will allow us to examine how opening a full-service grocery store in a low-income, predominantly African American neighborhood, affects peoples' diet and food purchasing behaviors in both the short and long term. Our study will fill significant gaps in the literature on environmental determinants of diet and obesity and will help address key policy questions about the effects of the physical environment on these outcomes. PUBLIC HEALTH RELEVANCE: Does a new supermarket improve dietary behaviors of low-income African Americans? Dubowitz/PI Project Narrative Residents of low-income, minority, and rural neighborhoods have limited spatial access to grocery stores and therefore less access to healthful food. While research has documented this association, no published studies in the United States have investigated the impact of building a grocery store in a low-income community on residents' food purchasing and dietary behaviors. Our study will evaluate such a natural experiment, providing evidence of whether this type of environmental change can lead to better dietary quality, a critical step to reducing obesity.
Food Policy Research: We Need Better Measurement, Better Study Designs, And Reasonable And Measured Actions Based On The Available Evidence
Authors: Dubowitz T. , Ghosh-Dastidar M.B. , Collins R. , Escarce J. .
Source: Obesity (silver Spring, Md.), 2013 Jan; 21(1), p. 5-6.
Are Our Actions Aligned With Our Evidence? The Skinny On Changing The Landscape Of Obesity
Authors: Dubowitz T. , Ghosh-Dastidar M.B. , Steiner E. , Escarce J.J. , Collins R.L. .
Source: Obesity (silver Spring, Md.), 2013 Mar; 21(3), p. 419-20.
Distance To Store, Food Prices, And Obesity In Urban Food Deserts
Authors: Ghosh-Dastidar B. , Cohen D. , Hunter G. , Zenk S.N. , Huang C. , Beckman R. , Dubowitz T. .
Source: American Journal Of Preventive Medicine, 2014 Nov; 47(5), p. 587-95.
Healthy Food Access For Urban Food Desert Residents: Examination Of The Food Environment, Food Purchasing Practices, Diet And Bmi
Authors: Dubowitz T. , Zenk S.N. , Ghosh-Dastidar B. , Cohen D.A. , Beckman R. , Hunter G. , Steiner E.D. , Collins R.L. .
Source: Public Health Nutrition, 2015 Aug; 18(12), p. 2220-30.
Store Impulse Marketing Strategies And Body Mass Index
Authors: Cohen D.A. , Collins R. , Hunter G. , Ghosh-Dastidar B. , Dubowitz T. .
Source: American Journal Of Public Health, 2015 Jul; 105(7), p. 1446-52.
Associations Between Depressive Symptomatology, Diet, And Body Mass Index Among Participants In The Supplemental Nutrition Assistance Program
Authors: Flórez K.R. , Dubowitz T. , Ghosh-Dastidar M.B. , Beckman R. , Collins R.L. .
Source: Journal Of The Academy Of Nutrition And Dietetics, 2015 Jul; 115(7), p. 1102-8.
A Natural Experiment Opportunity In Two Low-income Urban Food Desert Communities: Research Design, Community Engagement Methods, And Baseline Results
Authors: Dubowitz T. , Ncube C. , Leuschner K. , Tharp-Gilliam S. .
Source: Health Education & Behavior : The Official Publication Of The Society For Public Health Education, 2015 Apr; 42(1 Suppl), p. 87S-96S.
Using A Grocery List Is Associated With A Healthier Diet And Lower Bmi Among Very High-risk Adults
Authors: Dubowitz T. , Cohen D.A. , Huang C.Y. , Beckman R.A. , Collins R.L. .
Source: Journal Of Nutrition Education And Behavior, 2015 May-Jun; 47(3), p. 259-64.
Diet And Perceptions Change With Supermarket Introduction In A Food Desert, But Not Because Of Supermarket Use
Authors: Dubowitz T. , Ghosh-Dastidar M. , Cohen D.A. , Beckman R. , Steiner E.D. , Hunter G.P. , Flórez K.R. , Huang C. , Vaughan C.A. , Sloan J.C. , et al. .
Source: Health Affairs (project Hope), 2015 Nov; 34(11), p. 1858-68.