- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03309306
Evaluating Household Food Behavior With a Smartphone App (FoodImage)
The purpose of this study is to test the use of a smartphone app as a way to measure food waste.
Investigators propose to improve the accuracy and convenience of household food waste measurement so that consumer food waste program evaluations yield more power, less bias, less measurement error, and greater representation of targeted populations.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Investigators will improve measurement via the development of the FoodImage smartphone app, a technology leveraging the investigators' expertise in creating and deploying apps to measure food intake and deliver nutritional interventions in free-living household conditions. Investigators will validate the app against weighed waste in a controlled laboratory setting.
The study will yield an app ready for future study deployment while analyses of the data will inform rapidly evolving policy discussions concerning optimal approaches to reduce food waste. These outcomes align with program priorities to understand the economics of food waste and to use behavioral economics to address consumption behavior.
Specific objectives include:
- Development of FoodImage, a smartphone app that measures household food waste and food-waste-related behaviors,
- Assess differences in the accuracy and time burden of measurements taken with the FoodImage app versus current household food waste measurement approaches (a pen-and-paper diary)
- Use the FoodImage app in a pilot randomized controlled trial designed to evaluate the effectiveness of reducing household food waste through behavioral nudges in the form of personalized feedback about food waste levels and household-specific reduction goals.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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-
Louisiana
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Baton Rouge, Louisiana, United States, 70808
- Pennington Biomedical Research Center
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- age 18-65 years
- body mass index 18.5 - 50 kg/m2, based on self-reported height and weight
- Shops for groceries
- Conducts some of the food shopping and food preparation for their household
- Be willing to do food shopping for the study (if necessary)
- Have an iPhone and an operable Apple ID, password, and email address and is willing to use these to collect data during the study, acknowledging that data usage, and associated charges, are a result of study participation
- Be willing to complete all study procedures corresponding to their randomization group
Exclusion Criteria:
In addition to those who do not meet inclusion criteria, subjects who meet any of the following criteria will be excluded from enrollment:
- Persons who are severely immune compromised
- Persons who are pregnant, as assessed by self-report
- Pennington employee
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
No Intervention: Phase 1: Lab Testing (Visit 1, Day 0)
Participants will test the FoodImage App and Pen-and-paper Records with in a Laboratory Kitchen.
Participants will use the FoodImage app and food records to measure food waste during simulated shopping trip and kitchen clean-out.
Measurements will be collected by participants with both methods while lab personnel directly weigh foods to provide the criterion value.
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Active Comparator: Phase 2: RCT Stress Management
Participants will use the FoodImage app to capture data on food purchases, food waste that occurs during food preparation, food waste that is present after eating, and food waste from food purges in free-living conditions.
Participants will capture baseline data for 4-7 days.
After a 1-week break, participants will use the app to record food waste for approximately 4-7 days over the subsequent week.
They will also receive information on stress management
|
Participants will use the FoodImage app to capture data on food purchases, food waste that occurs during food preparation, food waste that is present after eating, and food waste from food purges in free-living conditions.
Participants will capture baseline data for 4-7 days.
After a 1-week break, participants will use the app to record food waste for approximately 4-7 days over the subsequent week.
They will also receive information on stress management
|
Experimental: Phase 2: RCT Food Waste Reduction
Phase 2 will occur in participants' natural environment (free-living conditions). Participants will use the FoodImage app to capture data on food purchases, food waste that occurs during food preparation, food waste that is present after eating, and food waste from food purges. Participants will use the app to record food waste for approximately 4-7 days over the subsequent week. They will also be provided with the following:
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Participants will use the FoodImage app to capture data on food purchases, food waste that occurs during food preparation, food waste that is present after eating, and food waste from food purges in free-living conditions. Participants will use the app to record food waste for approximately 4-7 days over the subsequent week. They will also be provided with the following:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Phase 1: Food waste error
Time Frame: Lab Test, average of 4 hours at Visit 1
|
Determining if the error from the FoodImage app is smaller than error from the pen-and-paper records.
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Lab Test, average of 4 hours at Visit 1
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Phase 2: Weight of all household waste
Time Frame: Baseline to Day 14
|
Difference in change in total weight of all sources of household food waste.
|
Baseline to Day 14
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Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Corby K Martin, Ph.D., Pennington Biomedical Research Center
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- PBRC 2017-042
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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