The Food Phone Project

Study Overview
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Brief Summary
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The Primary Aim of the project is to modify the RFPM for adolescents and to address the concerns identified by the reviewers of the first grant application. We will then test the RFPM's validity (accuracy) compared to the validity of pen-and-paper food records.

Detailed Description
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The Primary Aim of the project is to modify the RFPM for adolescents and to address the concerns identified by the reviewers of the first grant application. We will then test the RFPM's validity (accuracy) compared to the validity of pen-and-paper food records. Our experience and the literature indicate that the RFPM is acceptable and feasible in school settings. Following modification of the RFPM and pilot testing with 4 adolescents, we will test the reliability and validity of both the RFPM and food records when used by 60 adolescents (12 to 18 years of age). During one week, participants will use the RFPM and during another week they will use food records (the order will be balanced across participants). The accuracy of each method will be examined by comparing energy and nutrient intake (collectively referred to as food intake or FI) to three gold standards: 1) doubly labeled water or DLW (energy intake only, or EIDLW), 2) a laboratory-based test meal (FILaboratory), and 3) food intake during lunch in a school cafeteria (FISchool). User-satisfaction and participant burden will also be compared between methods, and a cost-effectiveness analysis will determine if and under what conditions one method is more cost-effective than the other.

Official Title
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Remote Food Photography for the Real-time Measurement of Children's Food Intake

Conditions
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Comparison of Energy Intake Methods

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: boy or girl of any race age 12 to 18 years, inclusive willing to use the RFPM for one week and pen-and-paper food records for one week willing to complete one laboratory-based food test during week 3 willing to use the RFPM and food records during the laboratory-based test. Exclusion Criteria: -weight unstable (>1.1 pounds weight change in one week based on regressed daily body weights).

Ages Eligible for Study
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Minimum Age: 12 Years
Maximum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| RFPM/Paper and Pen Method<br> | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Doubly Labeled Water (DLW) | Doubly labeled water will be used to measure total daily energy expenditure (TEE) and Energy Intake. | 2 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The Remote Food Photography Method (RFPM) | In brief, adolescents will be trained to use a Smartphone and the Food Image App to capture images of their food selection and plate waste and to send the data packets to Food Photo II via the wireless network. | 7 days | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Energy Intake