The Food Phone Project (FPP)

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

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.

Study Overview

• Status: Completed
• Conditions: Comparison of Energy Intake Methods

Detailed Description

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.

• Study Type: Observational
• Enrollment (Actual): 53

Contacts and Locations

Study Locations

• United States
  • Louisiana
    • Baton Rouge, Louisiana, United States, 70808
      • Pennington Biomedical Research Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 12 years to 18 years (Child, Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

50 adolescents will be recruited.

Description

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).

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort
RFPM/Paper and Pen Method

What is the study measuring?

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

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Pen-and-paper Food Records	Participants will be instructed how to keep a food record and estimate portion size during a session at the Center. Participants will also receive a packet containing the food protocol outline, food record form, guide to portion sizes, guidelines for description of foods, and tips for recording food intake. Participants will be instructed to record everything they eat or drink, recording the food item, portion size, time of consumption, and meal designation.	7 days

Collaborators and Investigators

• Sponsor: Pennington Biomedical Research Center
• Collaborators: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
• Investigators: Principal Investigator: Corby K Martin, PhD, Pennington Biomedical Research Center

Study record dates

Study Major Dates

• Study Start: October 1, 2012
• Primary Completion (Actual): August 1, 2014
• Study Completion (Actual): August 1, 2014

Study Registration Dates

• First Submitted: October 30, 2012
• First Submitted That Met QC Criteria: October 30, 2012
• First Posted (Estimate): November 1, 2012

Study Record Updates

• Last Update Posted (Estimate): January 18, 2016
• Last Update Submitted That Met QC Criteria: January 15, 2016
• Last Verified: January 1, 2016

More Information

Terms related to this study

• Keywords: Energy Intake
• Other Study ID Numbers: PBRC 10040; R01DK089051 (U.S. NIH Grant/Contract)