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- Ensayo clínico NCT02774330
Impact of the Minneapolis Staple Foods Ordinance (STORE)
22 de enero de 2019 actualizado por: University of Minnesota
Impact of a Local Staple Foods Ordinance on Food Choice and Calories Purchased
Improving healthy food availability and decreasing the availability of high calorie, low nutrient products, particularly in underserved communities, has been identified as a leading strategy for local governments to prevent obesity.
However, policy action in this area to date has been limited.
This R01 will examine the impact of a local policy change that establishes minimum stocking criteria for a wide array of healthy foods as a requirement of food store licensing.
To our knowledge, this is the only policy of its kind in the US.
As such, if it is successful, it could serve as an important model policy for other local governments seeking to increase healthy food availability and prevent obesity through local policy action.
Descripción general del estudio
Descripción detallada
The aim of this study is to evaluate the impact of a local policy change (i.e., the Minneapolis Staple Foods Ordinance) that establishes minimum stocking criteria for a wide array of healthy foods as a requirement of food store licensing.
Recent calls to action from the Institute of Medicine, the Centers for Disease Control and Prevention and other authorities have identified improving access to healthy foods as a primary strategy for local governments to use in advancing obesity prevention efforts, but policy initiatives in this area have been limited.
In this study, the impact of the Minneapolis Staple Foods Ordinance will be evaluated by assessing objectively measured changes in: (a) food environments among small- to mid-sized, urban food stores, including availability, promotion, advertising, quality, price, and placement of both healthy and unhealthy foods and beverages, (b) nutritional quality of consumer purchases at small food stores, including assessment of energy density and calories via customer intercept surveys and direct observation of purchases and (c) home food environments, including availability of healthy and unhealthy foods/beverages and an overall home food obesogenicity score, among households that frequently shop at small- to mid-sized stores.
These changes will be assessed pre-policy implementation, as well as 4-, 12- and 24-months post-policy implementation, in two Minnesota cities: Minneapolis and St. Paul, (our control community).
The proposed scope of work in this study is important because its takes advantage of a unique opportunity to evaluate an innovative local policy addressing a recommended action area for obesity prevention that aligns with key recommendations by leading obesity prevention authorities.
To our knowledge, the Minneapolis Staple Food Ordinance is the only policy of its kind in the US, and as such it could serve as an important model policy for other local governments if it is successful.
Tipo de estudio
De observación
Inscripción (Actual)
3488
Contactos y Ubicaciones
Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.
Ubicaciones de estudio
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Minnesota
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Minneapolis, Minnesota, Estados Unidos, 55454
- University of Minnesota, Division of Epidemiology and Community Health
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Criterios de participación
Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.
Criterio de elegibilidad
Edades elegibles para estudiar
18 años y mayores (Adulto, Adulto Mayor)
Acepta Voluntarios Saludables
Sí
Géneros elegibles para el estudio
Todos
Método de muestreo
Muestra no probabilística
Población de estudio
Customers exiting small- to mid-size food stores after having purchased a food or beverage item
Descripción
Inclusion Criteria:
- Must be 18 years of age or older
- Must be able to speak and understand English
- Must have purchased at least one food or beverage item from a randomly selected store that meets the following criteria:
- Outside the central downtown commercial core
- Not authorized to accept benefits from the Special Supplemental Nutrition Program for Women, Infants, and Children
- Valid licensing address
- >100 square feet of retail floor space
- Not small vendors in market areas or specialty stores
- Non-supermarket
- Permission from store staff to recruit participants
Exclusion Criteria:
- Not meeting inclusion criteria
Plan de estudios
Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.
¿Cómo está diseñado el estudio?
Detalles de diseño
Cohortes e Intervenciones
Grupo / Cohorte |
Intervención / Tratamiento |
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Minneapolis, Minnesota Customers
Minneapolis, Minnesota has a policy in place whereby minimum quantities and varieties of healthy food are required for all licensed food stores.
The policy is our "intervention" condition.
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This local policy change (i.e., the Minneapolis Staple Foods Ordinance) establishes minimum stocking criteria for a wide array of healthy foods as a requirement of food store licensing.
To our knowledge, it is the first and only policy of its kind in the U.S.
This Staple Foods Ordinance requires stores to stock specific types of foods in minimum quantities and varieties, including fruits and vegetables, low-fat dairy, and whole grains.
A full list of all requirements can be found online through the City of Minneapolis: http://www.minneapolismn.gov/health/living/eating/staple-foods.
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St. Paul, Minnesota Customers
No policy exists in St. Paul, Minnesota.
This is the control condition.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Healthy Food Supply (store-level)
Periodo de tiempo: 24 months post-policy implementation (i.e., 12-months post-policy enforcement)
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To assess changes in healthy and unhealthy food availability, we will use a tool developed at the Yale Rudd Center for Food Policy and Obesity to evaluate the impact of 2009 Special Supplemental Nutrition Program for Women, Infants, and Children policy revisions in small stores, with minor adaptations to suit the needs of our study (See Andreyeva et al, J Acad Nutr Diet.
2012;112(6):850-858).
As detailed in Andreyeva et al, we will create and use an an adapted Healthy Food Supply (HFS) score that summarizes availability, price, quality, and variety in the stores in our sample.We will examine changes in healthy food supply scores over time in stores in our sample in Minneapolis (where the policy is in place, i.e., our "intervention" community) versus those in St. Paul (where no such policy exists, i.e., our "control" community).
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24 months post-policy implementation (i.e., 12-months post-policy enforcement)
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Calories purchased (customer-level)
Periodo de tiempo: 24 months post-policy implementation (i.e., 12-months post-policy enforcement)
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Our staff will examine all foods and beverages purchased (via a "bag check") by participating customers existing stores in our sample and will record item names, product types and weights/sizes.
We will conduct detailed nutrient analyses on these purchases to assess total calories purchased and possible changes in calories purchased over time, comparing relative changes in purchasing among participants recruited outside of stores in Minneapolis (where the policy is in place, i.e., our "intervention" community) versus those in St. Paul (where no such policy exists, i.e., our "control" community).
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24 months post-policy implementation (i.e., 12-months post-policy enforcement)
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Otras medidas de resultado
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Healthy home food availability/obesogenicity score (customer-level)
Periodo de tiempo: 24 months post-policy implementation (i.e., 12-months post-policy enforcement)
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Trained staffers will visit the homes of participants who report frequently shopping in small- and non-traditional food stores to complete a home food inventory using a validated assessment tool.
(See Fulkerson et al, International Journal of Behavioral Nutrition and Physical Activity 2008;5(55).)
Data collected using this tool will be used to create a validated summative obesogenicity score, as detailed in Fulkerson et al 2008.
Changes in this score will be examined over time.
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24 months post-policy implementation (i.e., 12-months post-policy enforcement)
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Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Melissa N Laska, PhD, University of Minnesota
Publicaciones y enlaces útiles
La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.
Publicaciones Generales
- Caspi CE, Winkler MR, Lenk KM, Harnack LJ, Erickson DJ, Laska MN. Store and neighborhood differences in retailer compliance with a local staple foods ordinance. BMC Public Health. 2020 Feb 4;20(1):172. doi: 10.1186/s12889-020-8174-2.
- Laska MN, Caspi CE, Lenk K, Moe SG, Pelletier JE, Harnack LJ, Erickson DJ. Evaluation of the first U.S. staple foods ordinance: impact on nutritional quality of food store offerings, customer purchases and home food environments. Int J Behav Nutr Phys Act. 2019 Sep 18;16(1):83. doi: 10.1186/s12966-019-0818-1.
- Caspi CE, Lenk K, Pelletier JE, Barnes TL, Harnack L, Erickson DJ, Laska MN. Association between store food environment and customer purchases in small grocery stores, gas-marts, pharmacies and dollar stores. Int J Behav Nutr Phys Act. 2017 Jun 5;14(1):76. doi: 10.1186/s12966-017-0531-x.
Fechas de registro del estudio
Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.
Fechas importantes del estudio
Inicio del estudio (Actual)
1 de septiembre de 2014
Finalización primaria (Actual)
18 de diciembre de 2017
Finalización del estudio (Actual)
30 de noviembre de 2018
Fechas de registro del estudio
Enviado por primera vez
4 de mayo de 2016
Primero enviado que cumplió con los criterios de control de calidad
16 de mayo de 2016
Publicado por primera vez (Estimar)
17 de mayo de 2016
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
24 de enero de 2019
Última actualización enviada que cumplió con los criterios de control de calidad
22 de enero de 2019
Última verificación
1 de enero de 2019
Más información
Términos relacionados con este estudio
Otros números de identificación del estudio
- 1311S45924
- 1410S54204 (Otro identificador: University of Minnesota Institutional Review Board)
- R01DK104348 (Subvención/contrato del NIH de EE. UU.)
- U48DP005022 (Subvención/contrato del NIH de EE. UU.)
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
NO
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