Nutritional Assessment
Conditions
Keywords
Dietary Assessment
Brief summary
The purpose of this study is to assess the validity of the PortionSize™ app to quantify children's own dietary intake and children's intake by parents or caregivers.
Detailed description
The investigators will recruit 40 dyads (40 children aged 7-12 years old and 40 parents or caregivers) using a convenience sample for this pilot study. Children and their parents or caregivers will be trained to use the PortionSize app at Pennington Biomedical Research Center (PBRC). Children will use the PortionSize app and estimate food intake from pre-weighed meals (simulated meals) at PBRC clinic. Children will not consume the simulated meals. Children's parents or caregivers will also use the PortionSize app and estimate the food intake of their children (at least one meal and a snack each day) for two consecutive days at home.
Interventions
DEVICEValidation of the PortionSize app
The investigators will recruit 40 dyads (40 children aged 7-12 years old and 40 parents or caregivers) using a convenience sample for this pilot study. Children and their parents or caregivers will be trained to use the PortionSize app at Pennington Biomedical Research Center (PBRC). Children will use the PortionSize app and estimate food intake from pre-weighed meals (simulated meals) at PBRC clinic. Children will not consume the simulated meals. Children's parents or caregivers will also use the PortionSize app and estimate the food intake of their children (at least one meal and a snack each day) for two consecutive days at home.
Sponsors
Pennington Biomedical Research Center
Blue Cross and Blue Shield of Louisiana Foundation
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
7 Years to 12 Years
Healthy volunteers
Yes
Inclusion criteria
* Male or female * Children (7-12 years) and their parents or caregivers (18-62 years) * Parents who have Willingness to use the PortionSize app to estimate the intake of their child food intake (normal/regular diet) from at least a snack and a meal of child for two consecutive days * Have iPhone (version 6 or above) and an operable Apple ID, password, and email address, and able to use iPhone
Exclusion criteria
* Any condition or circumstance that could impede study completion * Child who is a very choosy eater or has a very limited food choice
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Estimation of Energy Intake (kcal) by Children Using the PortionSize App | One study visit of ~ 2.5 hours | Percent mean error and Bland-Altman analysis will be performed to determine errors in estimations of energy intake from the PortionSize app compared to estimations of energy intake from the weighed meals (the criterion measure). |
| Estimation of Intake of Food Group Servings (Fruit) by Children Using the PortionSize App | One study visit of ~ 2.5 hours | Percent mean error and Bland-Altman analysis will be performed to determine errors in estimations of intake of food group servings from the PortionSize app compared to estimations of food group servings from the weighed meals (the criterion measure). |
| Estimation of Energy Intake (kcal/Day) by Parents or Caregivers Using the PortionSize App | Parents or caregivers will assess food intake of their child (at least one meal and a snack) for two consecutive days at home | Percent mean error and Bland-Altman analysis will be performed to assess errors in estimating energy intake using the PortionSize app compared to estimations of energy measured by expert raters via food photography analysis. |
| Estimation of Intake of Food Group Servings (Fruit) by Parents or Caregivers Using the PortionSize App | Parents or caregivers will assess food intake of their child (at least one meal and a snack) for two consecutive days at home | Percent mean error and Bland-Altman analysis will be performed to assess errors in intake of food group servings using the PortionSize app compared to estimations of food group servings measured by expert raters via food photography analysis. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| User Satisfaction of the PortionSize App for Recording Food Intake by Children | One study visit of ~ 2.5 hours | After completing assessment of food at clinic, children will complete a Likert scale-based survey questionnaire (User Satisfaction questionnaire). The investigators updated a 10-question user satisfaction survey that has been administered in prior studies to quantify satisfaction, ease of use, and adequacy of training for mobile app. The minimum score is 1 and the maximum score is 6 for each question and higher scores indicate a higher outcome. |
| User Satisfaction of the PortionSize App for Recording Food Intake by Parents or Caregivers | Parents or caregivers will assess food intake of their child (at least one meal and a snack) for two consecutive days at home | After completing assessment of child's food intake, parents or caregivers will complete a Likert scale-based survey questionnaire (User Satisfaction questionnaire). . The investigators updated a 10-question user satisfaction survey that has been administered in prior studies to quantify satisfaction, ease of use, and adequacy of training for mobile app. The minimum score is 1 and the maximum score is 6 for each question and higher scores indicate a higher outcome. |
Countries
United States
Contacts
PRINCIPAL_INVESTIGATORHanim E Diktas, PhD
Pennington Biomedical Research Center
Participant flow
Recruitment details
Children were enrolled in child-parent dyads. Parents/caregivers assisted with meal logging and training but were not analyzed as outcome participants. Participant Flow counts represent dyads; additional milestones below break down the numbers of children and caregivers included and how they progressed.
Pre-assignment details
Screening and enrollment were conducted at Pennington Biomedical Research Center. * Dyads enrolled: 31 * Children included: 31 * Caregivers/parents included: 31 - Among 31 parents, 21 were unique, as nine had a second child who participated in the study. * No randomization; single group assignment. * Intervention: training on and use of the PortionSize app by children and by caregivers/parents to log children's meals; validation in clinic and free-living use at home.
Baseline characteristics
| Characteristic | — |
|---|---|
| Age, Continuous | 9.6 years STANDARD_DEVIATION 1.8 |
| BMI percentile | 55.9 percentile STANDARD_DEVIATION 32.3 |
| Race (NIH/OMB) American Indian or Alaska Native | 0 Participants |
| Race (NIH/OMB) Asian | 1 Participants |
| Race (NIH/OMB) Black or African American | 8 Participants |
| Race (NIH/OMB) More than one race | 0 Participants |
| Race (NIH/OMB) Native Hawaiian or Other Pacific Islander | 0 Participants |
| Race (NIH/OMB) Unknown or Not Reported | 0 Participants |
| Race (NIH/OMB) White | 21 Participants |
| Region of Enrollment United States | 30 participants |
| Sex: Female, Male Female | 13 Participants |
| Sex: Female, Male Male | 17 Participants |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | 0 / 30 |
| other Total, other adverse events | 0 / 30 |
| serious Total, serious adverse events | 0 / 30 |
Outcome results
None listed