Skip to content

Validation of a Food Frequency Questionnaire: VioScreen

Validation of a Food Frequency Questionnaire: VioScreen

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05762718
Enrollment
27
Registered
2023-03-10
Start date
2022-12-16
Completion date
2024-04-16
Last updated
2024-10-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Not Determined

Brief summary

The purpose of this study is to learn more about how well a questionnaire about food intake works. The study team will compare questionnaire responses to several other measurements of food intake. There is a special emphasis on fruit and vegetable intake.

Interventions

None listed

Sponsors

University of Colorado, Denver
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 40 Years
Healthy volunteers
Yes

Inclusion criteria

* Age 18-40 as we are aiming to recruit women of child-bearing age * Pregnant women up to 26 weeks' gestation * Women assigned female sex at birth who are not pregnant

Exclusion criteria

* Women below the age of 18 or over the age of 40 years * Pregnant women more than 26 weeks' gestation at the time of enrollment * Women who are experiencing limited or reduced food intake related to nausea will not be approached for recruitment and are considered ineligible * Women who are unwilling to participate in the study due to time commitment or other reasons * Women whose capacity for study compliance is diminished due to conditions such as active untreated substance use disorder, untreated/uncontrolled schizophrenia, bipolar disorder, active psychosis will not be approached for recruitment and are considered ineligible

Design outcomes

Primary

MeasureTime frameDescription
Concurrent validity of VioScreen against 24-hour recalls6 weeksConcurrent validity measures how a new test compares against a validated test, called the criterion or gold standard.
Test-retest reliability of VioScreenone monthTest-retest reliability is a measure of reliability obtained by administering the same test twice over a period of time to a group of individuals.

Secondary

MeasureTime frameDescription
Test-retest reliability of Veggie Meterone monthTest-retest reliability is a measure of reliability obtained by administering the same test twice over a period of time to a group of individuals.
Test-retest reliability of Fruit and Vegetable Screenerone monthTest-retest reliability is a measure of reliability obtained by administering the same test twice over a period of time to a group of individuals.
Concurrent validity of VioScreen against Veggie Meter6 weeksConcurrent validity measures how a new test compares against a validated test, called the criterion or gold standard.
Concurrent validity of Fruit and Vegetable Screener against 24-hour recalls6 weeksConcurrent validity measures how a new test compares against a validated test, called the criterion or gold standard.
Concurrent validity of Veggie Meter against 24-hour recalls6 weeksConcurrent validity measures how a new test compares against a validated test, called the criterion or gold standard.
Concurrent validity of VioScreen against Fruit and Vegetable Screener6 weeksConcurrent validity measures how a new test compares against a validated test, called the criterion or gold standard.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026