Evaluating Diet, Food Insecurity, and Food Purchasing Outcomes of a Full-Service Mobile Food Market With a Cluster Randomized Trial
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Healthy Diet
- Sponsor
- University of Minnesota
- Enrollment
- 262
- Locations
- 1
- Primary Endpoint
- Diet quality
- Status
- Completed
- Last Updated
- 6 months ago
Overview
Brief Summary
Mobile food markets have been proposed as a strategy for mitigating health disparities related to poor nutrition and diet/weight-related health conditions because they bring low-cost, healthy food directly to underserved populations. Full-service mobile markets may improve multiple aspects of the diet by providing foods to meet all dietary needs through a convenient one-stop shop. The full-service mobile market to be tested (Twin Cities Mobile Market) sells nutritious and staple foods from a bus that regularly visits low-income neighborhoods. Foods are sold at prices ~10% below those of grocery stores. SNAP/EBT is accepted, and a state-funded fruit/vegetable incentive program (Market Bucks) is available to shoppers. Working in partnership with our community team members, we will enroll 12 total sites and recruit 22 participants per site (N=264). We will collect baseline data and randomize sites to either receive the full-service mobile market intervention or serve as the waitlist control. We will then implement the full-service mobile market at intervention sites, follow participants for 6 months, and collect follow-up data. After follow-up data collection, waitlist control sites will receive the full-service mobile market intervention. Diet quality will be assessed through dietary recall interviews, food insecurity will be assessed by survey, and fruit and vegetable purchases will be measured by collecting one month of food purchase tracking forms at baseline and follow-up data collection. Analyses will determine whether the full-service mobile market changes diet quality, food security, and food purchasing outcomes.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Community sites (e.g., public housing hi-rise, low-income senior living residence) must meet the following criteria:
- •locale for low-income populations that experience difficulty in accessing healthy, affordable foods (e.g., public housing residences; low-income senior housing) or a community center in a low-income, low-food access (0.5 mile) census tract;
- •willingness to be randomized to the intervention or waitlist control;
- •located over 0.5 miles apart from other trial sites;
- •willingness to allow for recruitment and data collection to occur in onsite community rooms
- •Participants must meet the following criteria:
- •being aged 18 years or older;
- •identifying as the primary food shopper in their household;
- •being able to speak English or ASL;
- •living within a half mile of the community site location; and
Exclusion Criteria
- •planning to move in the next 12 months
- •currently shopping at the mobile market
- •not having a phone number or mailing address
- •presence of a condition or abnormality that would prohibit participation in the study or the quality of the data
Outcomes
Primary Outcomes
Diet quality
Time Frame: At baseline and 6 month follow-up
Trained research staff certified in collecting dietary recalls using Nutrition Data System for Research software will collect three 24-hour dietary recall interviews (2 weekdays, 1 weekend day) from each participant at each measurement period. Dietary recall data will be used to calculate the Health Eating Index Total Score.
Secondary Outcomes
- Food insecurity(At baseline and 6 month follow-up)
- Level of food insecurity(At baseline and 6 month follow-up)
- Average weekly servings of fruits and vegetables procured(At baseline and 6 month follow-up)
- Fruit and vegetables (servings/day)(At baseline and 6 month follow-up)
- Daily intake of energy (kcal/day)(At baseline and 6 month follow-up)
- Percent calories from added sugar(At baseline and 6 month follow-up)
- Sodium (mg/day)(At baseline and 6 month follow-up)