About this trial
This study will evaluate a digital nudge intervention, Healthy Options At Pantries (HOAP), in the online food pantries of three large charitable food organizations. The study will use a hybrid effectiveness-implementation design, meaning it will evaluate whether the intervention works and how it can best be rolled out in an online food pantry setting. Intervention effectiveness will be evaluated using an interrupted time series analysis to identify changes in how healthy foods ordered by shoppers are (primary outcome) by comparing food ordering data over time before and after HOAP is introduced. The study will also evaluate the possibility of collecting dietary and clinical outcomes in a small subgroup of online pantry shoppers over time comparing both in-person and at-home approaches.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Adults age 18 years or older
Speak English or Spanish
Access to a smartphone
Have ordered from the online food pantry at least half of the available times over the past 6 pantry eligible periods (for example, at least 3 times in the past 6 weeks for online food pantries that allow weekly ordering or at least 3 times in the past 6 months for online food pantries that allow monthly ordering), during the 6-month period prior to implementation of the HOAP program (i.e., months -6 to -1)
Disqualifiers
Weigh more than 300 pounds
Have a pacemaker, defibrillator, or other cardiac implant
Plan to move out of metro Chicago in the next 6 months
Trial design
Single group
Treatments tested in this trial
Behavioral economics-based Healthy Options At Pantries (HOAP) digital nudge intervention
BehavioralIntervention will include behavioral digital nudges over a 6-month period to promote healthier food selection among online food pantry shoppers.
Treatment groups
Trial outcomes
Primary outcomes
Change in Healthfulness of Shopper Food Selection
The primary outcome is change in the healthfulness of shopper food selection over time, measured using the Charitable Food Network Index (CFNI). At each time point, food orders will be categorized into proportions of green, yellow, and orange items based on the Healthy Eating Research (HER) guidelines. These proportions will be combined into a composite CFNI score. CFNI scores range from 0 to 100, with higher scores indicating healthier overall food selections.
Secondary outcomes
Diet quality
Diet quality will be measured through up to two 24-hour dietary recalls using the Automated Self-Administered 24-hour Dietary Assessment Tool (ASA24).
Blood Pressure
Blood pressure will be measured using an automated blood pressure cuff. Blood pressure will be systolic and diastolic measures in mmHg. At each collection point, three blood pressure measurements will be obtained, and the average of the second and third measurements will be used for analysis.
Body Weight
Body weight will be measured in pounds using a medical-grade scale.
Body Composition
Body composition measures will include body fat percentage (range: 5-60%), visceral fat level (range: 1-30, lower values indicate lower visceral fat), and skeletal muscle percentage (range: 5-50%).
Sponsors and contacts
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Northwestern University
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
Collaborator