N/A
Completed N=15
The PortionSize Smartphone App Pilot (PS Pilot)
Dietary Habits
Source: ClinicalTrials.gov NCT04494971 ↗
Enrolled (actual)
15
Serious AEs
0.0%
Results posted
Oct 2024
Primary outcomePrimary: Validity of Portion Size at Estimating Energy Intake in Laboratory Conditions — 742.9; 659.3 kcal
Summary
The objective is to examine the preliminary validity, reliability and perceived participant satisfaction of the PortionSize app.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Validity of Portion Size at Estimating Energy Intake in Laboratory Conditions |
742.9; 659.3 | — |
| PRIMARY Validity of Portion Size at Estimating Energy Intake in Free-living Conditions |
1560.6; 1349.7 | — |
Eligibility Criteria
Inclusion Criteria
- BMI 18.5-45 kg/m2 based upon self-reported height and weight
- 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
Exclusion Criteria
- For females, pregnancy or breast feeding
- Currently diagnosed with an eating disorder
- Disease that severely affects metabolism, including diabetes, hypercholesterolemia, or dyslipidemia
- Has gained or lost more than 10 lbs in the last 3 months
- PBRC faculty/staff member
- Has suffered serious mental illness that has resulted in serious functional impairment and has substantially interfered with one's life activities within the last 5 years
- Any other medical, psychiatric, or behavioral factors in the judgment of the Principle Investigator that may interfere with study participation or the ability to follow the protocol
Data sourced from ClinicalTrials.gov (NCT04494971). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.