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Randomized Controlled Trial
. 2015 May:42:228-38.
doi: 10.1016/j.cct.2015.04.009. Epub 2015 Apr 27.

A store-based intervention to increase fruit and vegetable consumption: The El Valor de Nuestra Salud cluster randomized controlled trial

Guadalupe X Ayala  1 , Barbara Baquero  2 , Julie L Pickrel  3 , Joni Mayer  4 , George Belch  5 , Cheryl L Rock  6 , Laura Linnan  7 , Joel Gittelsohn  8 , Jennifer Sanchez-Flack  9 , John P Elder  10
Affiliations
Randomized Controlled Trial

A store-based intervention to increase fruit and vegetable consumption: The El Valor de Nuestra Salud cluster randomized controlled trial

Guadalupe X Ayala et al. Contemp Clin Trials. 2015 May.

Abstract

Introduction: Most evidence-based interventions to improve fruit and vegetable (FV) consumption target individual behaviors and family systems; however, these changes are difficult to sustain without environmental support. This paper describes an innovative social and structural food store-based intervention to increase availability and accessibility of FVs in tiendas (small- to medium-sized Latino food stores) and purchasing and consumption of FVs among tienda customers.

Methods: Using a cluster randomized controlled trial with 16 tiendas pair-matched and randomized to an intervention or wait-list control condition, this study will evaluate a 2-month intervention directed at tiendas, managers, and employees followed by a 4-month customer-directed food marketing campaign. The intervention involves social (e.g., employee trainings) and structural (e.g., infrastructure) environmental changes. Three hundred sixty-nine customers (approximately 23 per tienda) serve on an evaluation cohort and complete assessments (interviews and measurements of weight) at 3 time points: baseline, 6-months post-baseline, and 12-months post-baseline. The primary study outcome is customer-reported daily consumption of FVs. Manager interviews and monthly tienda audits and collection of sales data will provide evidence of tienda-level intervention effects, our secondary outcomes. Process evaluation methods assess dose delivered, dose received, and fidelity.

Results: Recruitment of tiendas, managers, employees, and customers is complete. Demographic data shows that 30% of the customers are males, thus providing a unique opportunity to examine the effects of a tienda-based intervention on Latino men.

Conclusions: Determining whether a tienda-based intervention can improve customers' FV purchasing and consumption will provide key evidence for how to create healthier consumer food environments.

Keywords: Employee training; Environmental change; Food store; Fruits and vegetables; Latino; Tiendas.

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Figures

Figure 1
Figure 1
Study design
Figure 2
Figure 2
a. Shelf dangler b. Aisle violator
Figure 3
Figure 3
Image of Plato Total marketing
See this image and copyright information in PMC

References

    1. Centers for Disease Control and Prevention. State-specific trends in fruit and vegetable consumption among adults --- United States, 2000–2009. MMWR Morb Mortal Wkly Rep. 2010;59:1125–1130. - PubMed
    1. Blanck HM, Gillespie C, Kimmons JE, Seymour JD, Serdula MK. Trends in fruit and vegetable consumption among U.S. men and women, 1994–2005. Prev Chronic Dis. 2008;5:A35. - PMC - PubMed
    1. Ayala GX, Baquero B, Klinger S. A systematic review of the relationship between acculturation and diet among Latinos in the United States: implications for future research. J Am Diet Assoc. 2008;108:1330–1344. - PMC - PubMed
    1. Pomerleau J, Lock K, Knai C, McKee M. Interventions designed to increase adult fruit and vegetable intake can be effective: a systematic review of the literature. J Nutr. 2005;135:2486–2495. - PubMed
    1. Thomson CA, Ravia J. A systematic review of behavioral interventions to promote intake of fruit and vegetables. J Am Diet Assoc. 2011;111:1523–1535. - PubMed

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