The El Valor de Nuestra Salud clustered randomized controlled trial store-based intervention to promote fruit and vegetable purchasing and consumption

International Journal of Behavioral Nutrition and Physical Activity

Ming Ji¹  Cheryl L. Rock²  Laura Linnan³  Joel Gittelsohn⁴  Jennifer Sanchez-Flack⁵  Guadalupe X. Ayala⁶  John P. Elder⁶  Joni Mayer⁶  Barbara Baquero⁷  Julie L. Pickrel⁸  Shih-Fan Lin⁸  George Belch⁹ 

[1] College of Nursing, University of South Florida, 12901, Tampa, FL, USA;Department of Family Medicine, School of Medicine, University of California, San Diego, 9500 Gilman Drive #0901, 92093, La Jolla, CA, USA;Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Campus Box 7440, 359 Rosenau Hall, 135 Dauer Drive, 27599, Chapel Hill, NC, USA;Department of International Health, Center for Human Nutrition, Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe St, 21205-2179, Baltimore, MD, USA;Department of Pediatrics, University of Illinois Cancer Center, Chicago, USA;Institute for Health Research and Policy, University of Illinois at Chicago, 1747 West Roosevelt Road, WROB 478, 60608, Chicago, IL, USA;Division of Health Promotion and Behavioral Sciences, School of Public Health, San Diego State University, San Diego, USA;Institute for Behavioral and Community Health, San Diego State University Research Foundation, 9245 Sky Park Court, Suite 220, 92123, San Diego, CA, USA;Health System and Population Health, School of Public Health, University of Washington, Box 35480, 98195, Seattle, WA, USA;Institute for Behavioral and Community Health, San Diego State University Research Foundation, 9245 Sky Park Court, Suite 220, 92123, San Diego, CA, USA;Marketing Department, Fowler College of Business, San Diego State University, 5500 Campanile Drive, 92182, San Diego, CA, USA;

关键词: Food environment;    Food store;    Food purchasing;    Latinos/Hispanics;    Fruits;    Vegetables;   

DOI  :  10.1186/s12966-021-01220-w

来源: Springer

【 摘 要 】

BackgroundModifying the environment to promote healthy foods is a population-based approach for improving diet. This study evaluated the outcome effectiveness of a food store intervention that used structural and social change strategies to promote fruits and vegetables. It was hypothesized that intervention versus control store customers would improve their consumption of fruits and vegetables at 6 months.Trial designClustered randomized controlled trialMethodsSixteen pair-matched stores were randomized to an intervention or wait-list control condition. With the research team’s support, intervention stores modified the availability, accessibility, and promotion of fruits and vegetables, including augmenting produce displays within the store and building employees’ capacity to place and promote fruits and vegetables throughout the store (Phase 1), followed by the delivery of a customer-directed marketing campaign for 6 months (Phase 2). From months 7 to 12, stores were encouraged to maintain strategies on their own (Phase 3). Customer-reported daily fruit and vegetable consumption (cups/day) were collected by blinded research assistants at three time-points (baseline, 6 months and 12 months post-baseline) from 369 participating customers (an average of 23/store). Secondary outcomes included customer-reported fruit and vegetable purchasing and other behaviors.ResultsThe study retained the 16 stores and most customers at 6 (91%) and 12 (89%) months. Although significant differences were not observed in the overall sample for vegetable consumption, male customers of intervention versus control stores consumed significantly more fruit daily at 6 months [mean (standard deviation) cups at baseline and six months; intervention: 1.6 (1.5) to 1.6 (1.5) vs. control: 1.4 (1.2) to 1.1 (0.8)]. However, this difference was not observed at 12 months, or among females. There was an overall increase in dollars spent at the targeted store in the intervention versus control condition among male versus female customers at 6 months; however, no change was observed in the percent of dollars spent on fruits and vegetables at the targeted store. Frequency of shopping at the targeted store did not modify intervention effects.ConclusionsStructural and social change interventions can modify customers’ behavior in the short-term. Future research should consider methods for achieving longer-term changes, and potential generalizability to other products (e.g., energy-dense sweet and savory products).Trial registrationNCT01475526

【 授权许可】

CC BY