Feasibility of using mobile point-of-sale technology in Baltimore City corner stores tracking sales: A brief report

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Small food retail stores in many underserved urban settings keep no electronic records, making documentation of program impact on sales difficult to obtain. We examined the feasibility of introducing a point-of-sale tablet (POST) application to track sales of foods and beverages in Baltimore City corner stores. A sample of four geographically and ethnically diverse corner store owners were trained to use POST to track sales of 14 items for eleven days. Feasibility was documented via a structured survey and open-ended interviews. POST had high economic and cultural acceptability, operability, and perceived sustainability, regardless of language differences or familiarity with mobile technology. All store owners reported willingness to use POST again. It is feasible to train corner store owners to use a point-of-sale application for sales monitoring. An upcoming trial will help to ensure that POST provides sufficient value added for corner store owners.


United States Department of Agriculture [USDA]. Access to Affordable, Nutritious Food Is Limited in “Food Deserts”. 2010. Retrieved from https://www.ers.usda.gov/amber-waves/2010/march/access-to-affordable-nutritious-food-is-limited-in-food-deserts/

Borradaile KE, Sherman S,Veur SSV, et al. Snacking in children: the role of urban corner stores. Pediatrics 2009;124:1293-8. DOI: https://doi.org/10.1542/peds.2009-0964

Gittelsohn J, Suratkar S, Song HJ, et al. Process evaluation of Baltimore Healthy Stores: a pilot health intervention program with supermarkets and corner stores in Baltimore City. Health Promot Pract 2010;11:723–32. DOI: https://doi.org/10.1177/1524839908329118

Buczynski AB, Freishtat H, Buzogany S. Mapping Baltimore city’s food environment: 2015 report. 2015. Available from https://mdfoodsystemmap.org/wp-content/uploads/2015/06/Baltimore-Food-Environment-Report-2015-11.pdf

Baltimore Food Policy Initiative. 2016. State of the corner store: A city perspective. Available from https://planning.baltimorecity.gov/sites/default/files/RFEA%20Mtg2_BFPI.pdf

Franco M, Diez Roux AV, Glass TA, et al. Neighborhood characteristics and availability of healthy foods in Baltimore. Am J Prev Med 2008;35:561-7. DOI: https://doi.org/10.1016/j.amepre.2008.07.003

Freishtat H. Baltimore city 2018 food environment brief. 2018. Available from https://planning.baltimorecity.gov/sites/default/files/City%20Map%20Brief%20011218.pdf

Przygocki L. Corner stores and health equity in Baltimore, MD: An analysis using the Healthy Food Availability Index. 2013. Available from: https://mdfoodsystemmap.org/wp-content/uploads/2014/07/LP_HFAI_GISproject_Revised_May24_2014.pdf

Albert SL, Langellier BA, Sharif MZ, et al. A corner store intervention to improve access to fruits and vegetables in two Latino communities. Public Health Nutr 2017;20:2249-59. DOI: https://doi.org/10.1017/S1368980017001008

Gittelsohn J, Rowan M, Gadhoke P. Interventions in small food stores to change the food environment, improve diet, and reduce risk of chronic disease. Prev Chronic Dis 2012;9:E59. DOI: https://doi.org/10.5888/pcd9.110015

Bodor JN, Ulmer VM, Dunaway LF, et al. The rationale behind small food store interventions in underserved urban neighborhoods: insights from New Orleans. J Nutr 2010;140:1185-8. DOI: https://doi.org/10.3945/jn.109.113266

Flournoy R. Healthy food, healthy communities: Promising strategies to improve access to fresh, healthy food and transform communities. Oakland: PolicyLink; 2010. Available from: https://www.policylink.org/sites/default/files/HFHC_FULL_FINAL_20120110.PDF

Ayala GX, Baquero B, Laraia BA, et al. Efficacy of a store-based environmental change intervention compared with a delayed treatment control condition on store customers’ intake of fruits and vegetables. Public Health Nutr 2013;16:1953–960. DOI: https://doi.org/10.1017/S1368980013000955

Ross A, Krishnan N, Panchal J, et al. Another barrier to increasing access to healthier foods is the cost of delivery to corner stores and wholesaler minimum purchase requirements that are not feasible for small stores due to lack of storage space. Ecol Food Nutr 2019;58:3-22. DOI: https://doi.org/10.1080/03670244.2018.1553778

Moore JE, Mascarenhas A, Bain J, Straus SE. Developing a comprehensive definition of sustainability. Implement Sci 2017;12:110. DOI: https://doi.org/10.1186/s13012-017-0637-1

Erply Business Software [Internet]. Point of sale. 2019. Available from https://erply.com/pos-system/

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