Operational challenges that may affect implementation of evidence-based mobile market interventions (2022)
Abstract: Introduction- Mobile produce markets are becoming an increasingly prevalent, accepted, and effective strategy for improving fruit and vegetable (F&V) access and consumption across underserved and lower-income communities. However, there is limited published research on mobile market operations. The goal of this research is to identify the challenges mobile markets face and ways to potentially mitigate those challenges. We will also discuss implications of our findings for future implementation of evidence-based food access interventions.
Methods- We conducted 21 semi-structured key informant (KI) interviews to assess common practices of mobile market organizations that had been operating for 2 + years. We asked KIs about their organizational structure, operations, procurement and logistics, evaluation efforts, marketing and community engagement, success and challenges. A primary qualitative analysis involved deductive coding using qualitative software. A secondary qualitative analysis identified subthemes related to common challenges and remedial practices. A deductive coding process was applied to match identified challenges to the appropriate Consolidated Framework for Implementation Research (CFIR).
Results- The leading challenges cited by KIs correspond to the CFIR domains of inner setting (e.g., funding and resources), outer setting (e.g., navigating regulations), and process (e.g., engaging community partnership). Practices that may mitigate challenges include maximizing ancillary services, adopting innovative volunteer and staffing structures, and formalizing agreements with community partners.
Conclusion- Common and persistent challenges ought to be addressed to ensure and enhance the positive public health impacts of mobile produce markets. Contextual factors, particularly organizational factors, that impact implementation should also be considered when implementing an evidence-based intervention at a mobile market. Further research is needed to determine which innovative solutions are the most effective in mitigating challenges, improving implementation, and enhancing sustainability of mobile markets.
The introduction of new food retail opportunities in lowerincome
Using common practices to establish a framework for mobile produce markets in the United States (2021)
Abstract: Access to affordable fruit and vegetables (F&V) remains a challenge within underserved communities across the United States. Mobile produce markets (mobile markets) are a well-accepted and effective strategy for increasing F&V consumption in these communities. Mobile market organizations share similar missions that focus on food, health, and empowerment, participate in incentive programs, offer nutrition education, utilize grassroots-based marketing strategies, prioritize local produce, and sell competitively priced produce through a market style. While mobile markets have become increasingly prevalent, models vary widely. Establishing standardized practices is essential for ensuring the effectiveness and sustainability of this important food access program. This research seeks to identify common practices of established mobile markets and describe the resources they rely on.
Low-income individuals’ perceptions about fruit and vegetable access programs: A qualitative study (2015)
Objective—To examine how fruit and vegetable (F&V) programs address barriers to F&V access and consumption as perceived by low-income individuals.
Design—From 2011–2012 thirteen focus groups were used to better understand low-income individuals’ perceptions about F&V programs.
Setting—Five North Carolina counties at community-serving organizations.
Participants—Low-income participants ages 18 or older were included in the study. A majority were African American females with a high school education or less and received government assistance.
Phenomenon of Interest—Low-income individuals’ perceptions about how F&V access programs can reduce barriers and increase consumption.
Analysis—A socioecological framework guided data analysis, and 2 trained researchers coded transcripts, identified major themes, and summarized findings.
Results—A total of 105 participants discussed that mobile markets could overcome barriers such as availability, convenience, transportation, and quality/variety. Some were worried about safety in higher crime communities. Participants’ opinions about how successful food assistance programs were at overcoming cost barriers were mixed. Participants agreed that community gardens could increase access to affordable, conveniently located produce, but worried about
Implications for Research and Practice—Addressing access barriers through F&V programs could improve consumption. Programs have the potential to be successful if they
address multiple access barriers.
Veggie Van Pilot Study: Impact of a Mobile Produce Market for Underserved Communities on Fruit and
Recruiting Community Partners for Veggie Van: Strategies and Lessons Learned From a Mobile Market Intervention in North Carolina (2017)
Food access interventions are promising strategies for improving
dietary intake, which is associated with better health. However,
studies examining the relationship between food access and intake are limited to observational designs, indicating a need for more rigorous approaches. The Veggie Van (VV) program was a
cluster-randomized intervention designed to address the gap
between food access and intake. In this article, we aim to describe the approaches involved in recruiting community partners to participate in VV.
The VV mobile market aimed to improve access to fresh fruits and vegetables by providing subsidized, high-quality, local produce in low-resource communities in North Carolina. This study describes the strategies and considerations involved in recruiting community partners and individual participants for participation in the VV program and evaluation.
To recruit partners, we used various strategies, including a site
screener to identify potential partners, interest forms to gauge future VV use and prioritize enrollment of a high-need population, marketing materials to promote VV, site liaisons to coordinate community outreach, and a memorandum of understanding between all invested parties.
A total of 53 community organizations and 725 participants were
approached for recruitment. Ultimately, 12 sites and 201 participants were enrolled. Enrollment took 38 months, but our approaches helped successfully recruit a low-income, low-access population. The process took longer than anticipated, and funding constraints prevented certain strategies from being implemented.
Recruiting community partners and members for participation in a multi-level, community-based intervention was challenging.
Strategies and lessons learned can inform future studies.
Cluster randomized controlled trial of a
A Cluster-Randomized Trial of a Mobile Produce Market Program in 12 Communities in North Carolina: Program Development, Methods, and
Background: Poorer diets and subsequent higher rates of chronic disease among lower-income individuals may be
partially attributed to reduced access to fresh fruits and vegetables (F&V) and other healthy foods. Mobile markets
are an increasingly popular method for providing access to F&V in underserved communities, but evaluation efforts
are limited. The purpose of this study was to determine the impact of Veggie Van (VV), a mobile produce market,
on F&V intake in lower-income communities using a group randomized controlled trial.
Methods: VV is a mobile produce market that sells reduced-cost locally grown produce and offers nutrition and
cooking education. We recruited 12 sites in lower-income communities in North Carolina (USA) to host VV,
randomizing them to receive VV immediately (intervention) or after the 6-month study period (delayed intervention
control). Participants at each site completed baseline and follow-up surveys including F&V intake, perceived access
to fresh F&V and self-efficacy for purchasing, preparing and eating F&V. We used multiple linear regression to
calculate adjusted differences in outcomes while controlling for baseline values, education and clustering within
Results: Among 142 participants who completed the follow-up, baseline F&V intake was 3.48 cups/day for control
and 3.33 for intervention. At follow-up, adjusted change in F&V consumption was 0.95 cups/day greater for
intervention participants (p = 0.005), but was attenuated to 0.51 cups per day (p = 0.11) after removing extreme
values. VV customers increased their F&V consumption by 0.41 cups/day (n = 30) compared to a 0.25 cups/day
decrease for 111 non-customers (p = 0.04). Intervention participants did not show significant improvements in
perceived access to fresh F&V, but increased their self-efficacy for working more F&V into snacks (p = 0.02), making
up a vegetable dish with what they had on hand (p = 0.03), and cooking vegetables in a way that is appealing to
their family (p = 0.048).
Conclusions: Mobile markets may help improve F&V intake in lower-income communities.
Background Mobile markets are an increasingly popular method for providing access to fresh fruits and vegetables (F/V) in underserved communities; however, evaluation of
these programs is limited, as are descriptions of their development, study designs, and needs of the populations they serve.
Objective Our aim was to describe the development and theoretical basis for Veggie Van (VV), a mobile produce market intervention, the study design for the VV evaluation,
and baseline characteristics of the study population.
Design The protocol and sample for a cluster-randomized controlled trial with 12 sites are described.
Participants/setting Community partner organizations in the Triangle region of North Carolina that primarily served lower-income families or were located in areas that had
limited access to fresh produce were recruited. Eligible individuals at each site (older than 18 years of age, self-identified as the main shoppers for their household, and expressed interest in using a mobile market) were targeted for enrollment. A total of 201 participants at 12 sites participated in the VV program and evaluation, which was implemented from November 2013 to March 2016.
Main outcome measures Change in F/V intake (cups/day), derived from self-reported responses to the National Cancer Institute F/V screener, was the main outcome measure.
Statistical analyses performed We performed a descriptive analysis of baseline sample characteristics.
Results Mean reported F/V intake was 3.4 cups/day. Participants reported generally having some access to fresh F/V, and 57.7% agreed they could afford enough F/V to feed
their family. The most frequently cited barriers were cost (55.7%) and time to prepare F/V (20.4%). Self-efficacy was lowest for buying more F/V than usual and trying new
Conclusions By addressing cost and convenience and building skills for purchasing and preparing F/V, the VV has the potential to improve F/V consumption in underserved